小升初数学总复习解方程专项练习200题有答案Word文档格式.docx
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总.929uQS
(47)
(48门・255^,
(56)150%x+66=99
1.25二X
(49)0-251.6’
(57)x+6-0.8x=16
(50)
(58)
rH2
(51)5:
8=x:
32,
-5駄二5・5
(59)5
(52)2x+3X0.9=24.9,
(53)
4
5.3x-2.9x=—>
(61)(X+0.5):
2寺(X-4):
|
(54)号X<
7-2.8x)=1.5,
(62)X-rO.05=3.528,
(63)2X-4X6=80,
(72)
(64)4X4.5・3X=6.38,
(73)
.415.21•亏一52•26'
(65)4X・7.2=10,
(66)11.5X+X=20,
(74)
(75)
(67)3.8X12+15X=87.6,
(68)6X+5=17,
(76)
(69)0.6X(2.5+X)=4.2,
(77)200:
6=x:
12
~9
(70)I
8
I?
(78)44-X=7,
(71)
10522
271845
(79)8(x・2)=2(x+7),
(89)1・6x+2.4=7.52,
(81)
r24
(90)3(x・0.8)=6.3,
(82)
(91)2&
4・5x=5.8,
(83)
1
4:
(84)
1.6.6.4
(85)5(3x-4)-2(x・1)=5(2x-1)
(86)
6x-lg
8亏
(87)8(2X-7)=5(X+13),
(95)
叫:
-0.3:
!
2,
(105)xX专二殆,
(98)4x+2(8・x)=26,
(106)5x+35=650,
(107)7204-3x=80,
(108)3.6x-0.9x=8.1,
(迪)xX(舞)誉
(109)4X4.5・3x=6,
(102)专-3萨寺
(110)
102.5
9
x0.8
(103)(1+4)x=28,
(111)6X3-1.8X=7・2,
(112)
、3
(113)"
应=42,
(121)x:
3.5=4:
2斗,
J
(114)尿琲
(122)x・0.8x-6=16,
(115)7x・3=8.19,
(124)
0.015二公
0.06乜'
(117)3(x+2)=4(x+1),
(118)3x-70%x=9.2,
厶“、211
(126)弓気
(127)xX50%・gx=5,
、?
4
(129)2.5+1寺=3专,
VI
(137)32.8・9x=17.5,
R1
(130)3-^x-2-^=4,
62
(138)x-0.36x=16,
(131)8.5・3x=2寺
(139)6X7+3x=69,
(132)3討=4,
(140)6x+2x-56=0,
3
(133)-5%=17.54,
(141)3x・0.45X4=2.7,
(闕|轻(4F,
(142)5.8x・4.6x=0.96,
(143)8.44-(9-x)=3,
(135)6x+31=49,
(145)5x+28=71,
(154)
6X3-1.8x=7.2,
(146)8.7・1.2x=3.9,
(155)
10:
x=4.5:
0.8,
(147)8x-2.6x=37.8,
(156)
(148)0.75x・0.95X4=8.5,
(157)
(149)544-2+3x=72,
(158)
(150)8x-2.6=37.8,
(159)
z-x1.52
(151)孑盲I?
(160)
(152)x+30%x=26,
(161)
X-7.65=4.64,
28.25・X=8.25,
X-(3.6+2.97)=12.42,
W-14.5=5.5,
(163)75%x-5X-|=6,
(172)丁
(164)6.8=15.4,
(173)4.5xg・3妇1.5,
J乙
(165)1.9x=5.7,
(174)(1+25%)x=0.5,
(166)4.3y-y=4.6,
(175)x-40%x=9,
(167)5x+2.6=7.6,
(176)xX20%=15.2,
(168)x・1・5=12.9,
(169)9x+5x=8.4,
(170)6.8+3.2x=14.8,
9
(179)寺F75%=3,
(180)4x-yX14=2.4,
“、4?
(181)舟:
x=-=:
4.5,
95
(189)4x-5X6=12,
(182)(x・4.5)X6=12.5,
(190)8x-3x=15.6,
(183)27-17x=13.4,
(191)30X(x4-4)=60,
(184)9.6+3x=3.24X5,
(192)7.2X0.5-3x=1.2,
(185)2x+5=5x-7,
(193)5x・2.4X5=8,
(186)3(x-2)=2・5(x・2),
(關詔今2,
(187)4x・3(20・x)+4=0,
(195)5x+2.4X15=66,
(196)3.2x+2・8x~x=l,
(197)2.5X16-8x=12,
(198)9.6-3x=6.3,
(199)5(x+6)=75,
(200)x-rO.7+0.9X3=4,
解方程专项练习200题答案:
1=6X(x・*),
xx^xA=4,
3147
討2冲21,
x=12;
3I
—-4x+4x=-t+4x»
46
卄“4,
(4)
8X2.5-2x=13.6
20-2x=13.6,
13.6+2X=20,
2X=6.4,
x=3.2;
0.78:
x—3j5,
3x=0.78X5,
(10)9X3-1.7x=13.4,
27・1.7x=13.4,
27-1.7x+l.7x=13.4+1.7x,13.4+1.7x=27,
13.4+1.7x-13.4=27・13.4,
1.7x=13.6,
1.7x^1.7=13.64-1.7,
x=8
(11)x-25%x=24,
75%x=24,75%x4-75%=244-75%,x=32;
3x=3.9,
x=1.3
1-20%x=0.4,
6)
1-20%x+20%x=0.4+20%x,
0.4+20%x=l,
0.4+20%x・0.4=1・0・4,
20%x—0.6,
2%x罟=0.6X帶
341
(⑵孑行2咒,
3Ae1
孑_°
-%,
話-0.6+0
311
矿诃
3.311・3
1-r
x=3;
(x4)=6
(13)0.6x+90%x=78,
(28)0.8:
三=0.48:
x,
0.8x=^X0.48,
0.8x=0.2,
0.8x*0.8=0.24-0.8,
29)x4x=i
x-3+3=2.9+3,x=5.9;
(34)1.6x=6.4,
1.6x-rl.6=6.44-1.6,x=4;
(35)4x-3X9=29,
4x-27=29,
4x・27+27=29+27,4x=56,4x4-4=564-4,x=14;
(36)16+8x=40,16+8x・16=40・16,
8x=24,
8x4-8=244-8,
(37)x-rl.1=3,x-rl.1X1.1=3X1.1,
x=3.3
(38)”2x=寺
R
(30)42:
-|=x:
8;
79
(39)需X3・7E4,
x=50;
(31)5x・0.4=75%,
5x-0.4+0.4=75%+0.4,
5x4-5=1.154-5»
x=0.23
2.16・7x=l.04,
2.16-7x-1.04=1.04-1.04,
1.12・7x=0,
7x4-7=1.12J7,
x=0.16;
(40)
IT
(32)6x-0.9=4.5,
6x・0.9+0.9=4.5+0.9,6x=5.4,
6x4-6=5.44-6,x=0.9;
(33)2(x・3)=5.8,
2(x-3)4-2=5.84-2
x-3=2.9»
(41)x-—x=14,
x=1i
x=18;
(48)5+25吨+2扯,
18
19!
9_1S
0.25x+0.25・0.25=1・0.25,
0.25x=0.75,
1.25X
(49)0.251.&
'
19?
(43)
x_Q.26
T22.4
2.4x=72X0.26,
2.4x=18.72,
2.4x4-2.4=1&
724-2.4,
0.25x=l.25X1.6,
0.25x4-0.25=1.25X1.6-rO.25,x=8;
114
4xx=^xA
(50)425
4425
x=7.8;
(44)1.2:
2*=1.2X5,
2_x
3=5*
x=9;
(45)
183—=—:
x10
(51)5:
32,8x=5X32,
8x4-8=5X324-8,
x=20
(52)2x+3X0.9=24.9,
2x+2.7=24.9,
2x+2.7・2・7=24.9・2.7,
2x4-2=22.24-2,
x=ll.1;
(53)5.3x-2.9x#,
2.