六年级解方程专项练习200题.docx

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六年级解方程专项练习200题

六年级解方程专项练习200题(有答案)

 

(1)x﹣=,

 

(2)x××=,

 

(3)﹣4x=,

 

(4)8×﹣2x=

 

(5):

x=3:

5,

 

(6)1﹣20%x=,

 

(8)1÷(x﹣)=6,

 

(9)2x﹣x=,

 

(10)9×3﹣=,

 

(11)x﹣25%x=24,

 

(12)x﹣+=,

 

 

(13)+90%x=78,

 

(14)20%x﹣×3=,

 

(15)x﹣x=42,

 

(16)+3×=,

 

(17)1÷(x﹣)=5,

 

(18)x﹣=,

 

(19):

x=3:

12,

 

(20)x+=,

 

(21):

x=1:

 

(22)x×(2﹣)=24,

 

(23)4x﹣=3,

 

(24)12x+7×=,

 

(25)x+x=,

 

(26)x:

42=

 

 

(27)×+x=,

 

(28):

=:

x,

(29)χ﹣χ=,

 

 

(30)42:

=χ:

 

(31)5x﹣=75%,

 

(32)6x﹣=,

 

(33)2(x﹣3)=,

 

(34)=,

 

(35)4x﹣3×9=29,

 

(36)16+8x=40,

 

(37)x÷=3,

 

(38)+2x=,

 

(39)×3﹣7x=,

 

(40)x﹣1﹣x=2,

 

(41)x﹣x=14,

 

(42)3x﹣x=,

 

(43)=,

 

(44):

=,

 

(45)=:

 

(46):

=x:

 

(47)x=+1,

 

(48)1﹣25%X+25%x=+25%x,

 

(49)=,

 

(50)×X=,

 

(51)5:

8=x:

32,

 

(52)2x+3×=,

 

(53)﹣=,

 

(54)×(7﹣)=,

 

(55)x:

=:

 

(56)150%x+66=99

 

(57)x+6﹣=16

 

(58)

 

(59)

 

(60)3÷(X﹣)=

 

(61)(X+):

2=(X﹣4):

 

(62)X÷=,

 

(63)2X﹣4×6=80,

 

(64)4×﹣3X=,

 

(65)4X﹣=10,

 

(66)+X=20,

 

(67)×12+15X=,

 

(68)6X+5=17,

 

(69)×(+X)=,

 

(70):

=X:

 

 

(71)

 

(72)

 

(73)

 

(74)4(+x)=,

 

(75)×+x=,

 

 

(76)x﹣,

(77)200:

6=x:

 

(78)4÷X=,

 

(79)8(x﹣2)=2(x+7),

 

(80):

18%=,

 

 

(81)﹣2x=,

 

(82)x+x=46,

 

(83):

x=:

 

(84)=,

 

 

(85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1)

 

(86)

=,

(87)8(2X﹣7)=5(X+13),

 

(88)3(x+)=60,

 

(89)+=,

 

(90)3(x﹣)=,

 

(91)﹣5x=,

 

 

(92)x:

=

 

(93)+2x=,

 

(94)x=15%,

 

(95)x﹣x=,

 

(96)x+50%x=6,

 

(97):

x=:

12,

 

(98)4x+2(8﹣x)=26,

 

(99)x﹣=0,

 

(100)+x=1,

 

(101)x×(+)=,

 

(102)

 

(103)

 

(104)x﹣

 

(105)x×

 

(106)5x+35=650,

 

(107)720÷3x=80,

 

(108)﹣=,

 

(109)4×﹣3x=6,

 

(110)=,

 

(111)6×3﹣=,

 

(112)÷x=,

 

(113)x÷=42,

 

(114)x+=,

 

(115)7x÷3=,

 

(116)12:

=x:

 

(117)3(x+2)=4(x+1),

 

 

(118)3x﹣70%x=,

 

(119)6+x=240,

 

(120)﹣=,

 

(121)x:

=4:

2,

 

(122)x﹣﹣6=16,

 

(123):

=x:

8,

 

(124)

 

(125)x:

15=:

 

(126)x+x=,

 

(127)x×50%﹣x=5,

 

(128)1﹣x=,

 

(129)+1x=3,

 

(130)3x﹣2=4,

 

(131)﹣3x=2,

 

(132)3÷x=4,

 

(133)x﹣5%=,

 

(134):

=:

(4﹣x),

 

(135)6x+31=49,

 

(136)7x÷3=,

 

(137)﹣9x=,

 

(138)x﹣=16,

 

(139)6×7+3x=69,

 

(140)6x+2x﹣56=0,

 

(141)3x﹣×4=,

 

(142)﹣=,

 

(143)÷(9﹣x)=3,

 

(144)3x÷=8,

 

(145)5x+28=71,

 

(146)﹣=,

 

(147)8x﹣=,

 

(148)﹣×4=,

 

(149)54÷2+3x=72,

 

(150)8x﹣=,

 

(151)x÷=,

 

(152)x+30%x=26,

 

(153)﹣3x=,

 

(154)6×3﹣=,

 

(155)10:

x=:

 

(156):

=x:

 

(157)X﹣=,

 

(158)﹣X=,

 

(159)X﹣(+)=,

 

(160)÷x=,

 

(161)=,

 

(162)x﹣80%x=48,

 

(163)75%x﹣5×=6,

 

(164)x﹣=,

 

(165)=,

 

(166)﹣y=,

 

(167)5x+=,

 

(168)x﹣=,

 

(169)9x+5x=,

 

(170)+=,

 

(171)5÷x=,

 

(172)﹣x=,

 

(173)×﹣3x=,

 

(174)(1+25%)x=,

 

(175)x﹣40%x=9,

 

(176)x×20%=,

 

(178)x﹣x=,

 

(179)x÷75%=3,

 

(180)4x﹣

 

(181):

x=:

 

(182)(x﹣)×6=,

 

(183)27﹣17x=,

 

(184)+3x=×5,

 

(185)2x+5=5x﹣7,

 

(186)3(x﹣2)=2﹣5(x﹣2),

 

(187)4x﹣3(20﹣x)+4=0,

 

(188)﹣

=1,

 

(189)4x﹣5×6=12,

 

(190)8x﹣3x=,

 

(191)30×(x÷4)=60,

 

(192)×﹣3x=,

 

 

(193)5x﹣×5=8,

 

(194)+x=×2,

 

(195)5x+×15=66,

 

(196)+=1,

 

(197)×16-8x=12,

 

(198)=,

 

(199)5(x+6)=75,

 

(200)x÷+×3=4,

 

 

解方程专项练习200题答案:

(1)x﹣=,

=,

x=;

(2)x××=,

x=,

x×21=×21,

x=12;

(3)﹣4x=,

﹣4x+4x=+4x,

=+4x,

÷4=4x÷4,

x=.

(4)8×﹣2x=

20﹣2x=,

+2X=20,

2X=,

x=;

(5):

x=3:

5,

3x=×5,

3x=,

x= 

(6)1﹣20%x=,

1﹣20%x+20%x=+20%x,

+20%x=1,

+20%x﹣=1﹣,

20%x=,

20%x×=×,

x=3;

(8)1÷(x﹣)=6,

1÷(x﹣)×(x﹣)=6×(x﹣),

1=6×(x﹣),

6x﹣6×=1,

6x﹣3=1,

6x=4,

6x÷6=4÷6,

x=

(9)2x﹣x=,

x(2﹣)=,

x=,

x÷=÷,

x=1;

(10)9×3﹣=,

27﹣=,

27﹣+=+,

+=27,

+﹣=27﹣,

=,

÷=÷,

x=8

(11)x﹣25%x=24,

75%x=24,

75%x÷75%=24÷75%,

x=32;

(12)x﹣+=,

x﹣=,

x﹣+=+,

x=,

x÷=÷,

x=1

 

(13)+90%x=78,

=78,

÷=78÷,

x=52;

(14)20%x﹣×3=,

20%x﹣=,

20%x﹣+=+,

20%x÷20%=8÷20%,

x=40;

(15)x﹣x=42,

x=42,

x÷=42÷,

x=252

(16)+3×=,

+=,

+﹣=﹣,

=60,

÷=60÷,

x=100;

 

(17)1÷(x﹣)=5,

÷(x﹣)×(x﹣)=(x﹣),

x﹣=,

x﹣+=+,

x=4,

x÷=4÷,

x=

(18)x﹣=,

x﹣+=+,

x=;

(19):

x=3:

12,

3x=×12,

3x÷3=9÷3,

x=3

(20)x+=,

x+﹣=﹣,

x=,

x×=×,

x=8.

(21):

x=1:

x=×,

x=

(22)x×(2﹣)=24,

x×=24,

x×÷=24÷,

x=20;

(23)4x﹣=3,

4x﹣+=3+,

4x=4,

4x÷4=4÷4,

x=1

(24)12x+7×=,

12x+=,

12x+﹣=﹣,

12x÷12=18÷12,

x=;

(25)x+x=,

x=,

x=;

(26)x:

42=

10x=42×,

10x÷10=30÷10,

x=3

 

(27)×+x=,

+x=,

+x﹣=﹣,

x=3,

x÷=3÷,

x=6;

(28):

=:

x,

=×,

=,

÷=÷,

x=

(29)χ﹣χ=,

x=,

x=,

x=3;

(30)42:

=χ:

x=42×,

x=30,

x=50;

(31)5x﹣=75%,

5x﹣+=75%+,

5x÷5=÷5,

x=

 

(32)6x﹣=,

6x﹣+=+,

6x=,

6x÷6=÷6,

x=;

(33)2(x﹣3)=,

2(x﹣3)÷2=÷2

x﹣3=,

x﹣3+3=+3,

x=;

(34)=,

÷=÷,

x=4;

(35)4x﹣3×9=29,

4x﹣27=29,

4x﹣27+27=29+27,

4x=56,

4x÷4=56÷4,

x=14;

(36)16+8x=40,

16+8x﹣16=40﹣16,

8x=24,

8x÷8=24÷8,

x=3;

(37)x÷=3,

x÷×=3×,

x=

(38)+2x=,

+2x=,

2x=,

2x÷2=÷2,

x=;

(39)×3﹣7x=,

﹣7x=,

﹣7x﹣=﹣,

﹣7x=0,

7x÷7=÷7,

x=;

(40)x﹣1﹣x=2,

x﹣1=2,

x﹣1+1=2+1,

x=3,

x=3,

x=18;

(41)x﹣x=14,

x=14,

x=14,

x=18;

(42)3x﹣x=,

x=,

x=,

x=;

(43)=,

=72×,

=,

÷=÷,

x=;

(44):

=,

x=×5,

x=6,

x=6,

x=9;

(45)=:

x=18×,

x=,

x=,

x=12;

(46):

=x:

x=×,

x=,

x=;

(47)x=+1,

x×=×,

x=1 

(48)1﹣25%X+25%x=+25%x,

+﹣=1﹣,

=,

x=3;

(49)=,

=×,

÷=×÷,

x=8;

(50)×X=,

×X÷=,

x=;

(51)5:

8=x:

32,

8x=5×32,

8x÷8=5×32÷8,

x=20

(52)2x+3×=,

2x+=,

2x+﹣=﹣,

2x÷2=÷2,

x=;

(53)﹣=,

=,

÷=÷,

x=;

(54)×(7﹣)=,

×(7﹣)=,

7﹣=,

7﹣+=+,

7﹣=+﹣,

÷=÷,

x=;

(55)x:

=:

x=×,

x=,

x= 

(56)150%x+66=99

+66=99

=33

x=22

(57)x+6﹣=16

+6=16

=10

x=50

(58)

x=

(59)

=

x=10

(60)3÷(X﹣)=

3÷(X﹣)×(x﹣)=×(x﹣),

3=﹣,

3+=﹣+,

=,

÷=÷,

x=;

(61)(X+):

2=(X﹣4):

×(x﹣4)=(x+)×,

x﹣×4=x+×,

x﹣10﹣x=x+x,

﹣10+10=+10,

÷=÷,

x=

(62)X÷=,

X÷×=×,

X=;

(63)2X﹣4×6=80,

2X﹣24=80,

2X﹣24+24=80+24,

2X=104,

2X÷2=104÷2,

X=52;

(64)4×﹣3X=,

18﹣3X=,

18﹣3X+3X=+3X,

+3X=18,

+3X﹣=18﹣,

3X=,

3X÷3=÷3,

X=;

(65)4X﹣=10,

4X﹣+=10+,

4X=,

4X÷4=÷4,

X=;

(66)+X=20,

=20,

÷=20÷,

X=;

(67)×12+15X=,

+15X=,

+15X﹣=﹣,

15X=42,

15X÷15=42÷15,

X=

(68)6X+5=17,

6x+5﹣5=17﹣5,

6x÷6=12÷6,

x=2;

(69)×(+X)=,

×(+X)÷=÷,

+x=7,

+x﹣=7﹣,

x=;

(70):

=X:

x=×,

x÷=,

x=

 

(71)

(72)

(73)

(74)4(+x)=,

+4x=,

+4x﹣=﹣,

4x=4,

x=1;

(75)×+x=,

+x=,

+x﹣=﹣,

x=,

x=

 

(76)x﹣,

x=;

(77)200:

6=x:

6x=200×,

6x÷6=480÷6,

x=80

 

(78)4÷X=,

4÷X×X=X,

X=4,

X÷=4÷,

X=10;

(79)8(x﹣2)=2(x+7),

8X﹣16=2X+14,

6X﹣16=14,

6X=30,

X=5;

(80):

18%=,

X=×,

X=,

X=

 

(81)﹣2x=,

﹣2x+2x=+2x,

+2x=,

+2x﹣=﹣,

2x=,

2x÷2=÷2,

x=;

(82)x+x=46,

x(+)=46,

x=46,

x÷=46÷,

x=40;

(83):

x=:

x=×,

x=,

x÷=÷,

x=;

(84)=,

=×2,

=,

÷=÷,

x=8

 

(85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1)

15x﹣20﹣2x+2=10x﹣5,

13x﹣18=10x﹣5,

13x﹣18﹣10x=10x﹣5﹣10x,

3x﹣18=﹣5,

3x﹣18+18=﹣5+18,

3x=13,

3x÷3=13÷3,

x=;

(86)

=,

3(6x﹣1)=64,

18x﹣3=64,

18x﹣3+3=64+3,

18x=67,

18x÷18=67÷18,

x=

(87)8(2X﹣7)=5(X+13),

16x﹣56=5x+65,

16x﹣56﹣5x=5x+65﹣5x,

11x﹣56=65,

11x﹣56+56=65+56,

11x=121,

11x÷11=121÷11,

x=11,

(88)3(x+)=60,

3(x+)÷3=60÷3,

x+=20,

x+﹣=20﹣,

x=

(89)+=,

+﹣=﹣,

=,

÷=÷,

x=;

(90)3(x﹣)=,

3x﹣=,

3x﹣+=+,

3x=,

3x÷3=÷3,

x=;

(91)﹣5x=,

﹣5x+5x=+5x,

+5x=,

+5x﹣=﹣,

5x=,

5x÷5=÷5,

x=

 

(92)x:

=

25x=×3,

25x=,

25x÷25=

x=;

(93)+2x=,

+2x=,

2x=0,

x=0;

(94)x=15%,

x×x=15%x,

=,

÷=÷,

x=1;

(95)x﹣x=,

x=,

x=,

x=.

(96)x+50%x=6,

=6,

÷=6÷,

x=4;

(97):

x=:

12,

=

÷=9÷,

x=30;

(98)4x+2(8﹣x)=26,

4x+16﹣2x=26,

2x+16=26,

2x+16﹣16=26﹣16,

2x÷2=10÷2,

x=5

(99)x﹣=0,

x﹣+=0+,

x=,

x×3=×3,

x=;

(100)+x=1,

+x﹣=1﹣,

x=,

x×=×,

x=1;

(101)x×(+)=,

x=,

x×=×,

x=.

(102)

3x÷3=,

x=;

(103)

x=20;

(104)x﹣

x=;

(105)x×

x=

(106)5x+35=650,

5x+35﹣35=650﹣35,

5x=615,

5x÷5=615÷5,

x=123;

(107)720÷3x=80,

720÷3x×3x=80×3x,

240x=720,

240x÷240=720÷240,

x=3;

(108)﹣=,

(﹣)x=,

=,

÷=÷,

x=3;

(109)4×﹣3x=6,

18﹣3x=6,

18﹣3x+3x=6+3x,

6+3x=18,

6+3x﹣6=18﹣6,

3x=12,

3x÷3=12÷3,

x=4

(110)=,

=10×,

÷=8÷,

x=;

(111)6×3﹣=,

18﹣=,

18﹣+=+,

+=18,

+﹣=18﹣,

=,

÷=÷,

X=6

(112)÷x=,

x=÷,

x=;

(113)x÷=42,

x=42×,

x=9;

(114)x+=,

x+﹣=﹣,

x=,

x÷=÷,

x=

(115)7x÷3=,

7x÷3×3=×3,

7x=,

7x÷7=÷7,

x=;

(116)12:

=x:

=12×,

=6,

÷=6÷,

x=10;

(117)3(x+2)=4(x+1),

3x+6=4x+4,

3x+6﹣3x=4x+4﹣3x,

x+4=6,

x+4﹣4=6﹣4,

x=2

 

(118)3x﹣70%x=,

3x﹣=,

=,

÷=÷,

x=4;

(119)6+x=240,

6+x﹣6=240﹣6,

x=234,

x÷=234÷,

x=390

(120)﹣=,

﹣+=+,

+=,

+﹣=﹣,

÷=10÷,

x=25;

(121)x:

=4:

2,

2x=×4,

2x÷2=14÷2,

x=6

(122)x﹣﹣6=16,

﹣6=16,

﹣6+6=16+6,

÷=22÷,

x=110;

(123):

=x:

8,

x=8×,

x×=8××,

x=4;

(124)

=2×,

÷=÷,

x=;

(125)x:

15=:

x=15×,

x×6=15××6,

x=40;

(126)x+x=,

x=,

x×=×,

x=;

(127)x×50%﹣x=5,

x=5,

x×6=5×6,

x=30;

(128)1﹣x=,

1﹣x+x=+x,

+x=1,

+x﹣=1﹣,

x×=×,

x=;

(129)+1x=3,

+1x﹣=3﹣,

x=,

x×=×,

x=

(130)3x﹣2=4,

3x﹣2+2=4+2,

3x=6,

3x÷3=6÷3,

x=;

(131)﹣3x=2,

﹣3x+3x=2+3x,

3x+2=,

3x+2﹣2=﹣2,

3x=6,

3x÷3=6÷3,

x=2;

(132)3÷x=4,

3÷x×x=4×x,

4x=3,

4x÷4=3÷4,

x=

(133)x﹣5%=,

解:

x﹣5%+5%=+5%,

x=,

x=23;

(134):

=:

(4﹣x),

解:

4x=,

2﹣x+x=x,

2﹣

+x,

=x,

x=3

(135)6x+31=49,

6x+31﹣31=49﹣31,

6x=18,

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