四年级数学方程题300.docx

1、四年级数学方程题300四年级数学方程题300x-6*5=42 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X*（5+1）=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105 3X+5X=48 x+5=7 2x+3=10 12x-9x=9 6x+18=48 56x-50x=30 5x=15 78-5x=28 32y-29=3 5x+5=15 89x-9=80 100-20x=20 55x

2、-25x=60 76y-75=1 23y-23=23 4x-20=0 80y+20=100 53x-90=16 2x+9x=11 12y-12=24 80+5x=100 7x-8=6 65x+35=100 19y+y=40 25-5x=15 79y+y=80 42x+28x=140 3x-1=8 90y-90=90 80y-90=70 78y+2y=160 88-x=80 9-4x=1 20x=40 65y-30=100 51y-y=100 85y+1=86 45x-50=40 2X + 25 = 35 0.7X +0.2X = 3.6 6X5=13.4 25 X-13 X=310 4X638

3、 X+37X=18 X*( 16 + 38 )=1312 5X2.4*58 0.365- 34 x = 35 23 (x- 4.5) = 7 12 x- 0.25x = 10 x- 0.8x = 16+6 20 x-8.5= 1.5 X0.25X=90 X37 X= 89 3X+5X=48 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X*（5+1）=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105

4、x-6*5=42 x+5+19x+3=10 12x-9x=9 6x+18=48 56x-50x=30 5x=15 78-5x=28 32y-29=3 5x+5=15 89x-9=80 100-20x=20 55x-25x=60 76y-75=12 3y-23=23 4x-20=0 80y+20=100 53x-90=16 2x+9x=11 12y-12=24 80+5x=100 7x-8=6 65x+35=100 19y+y=40 25-5x=15 79y+y=80 42x+28x=140 3x-1=8 90y-90=90 80y-90=70 78y+2y=160 9-4x=1 24-3x=3

5、 3x+5x=48 65y-30=100 51y-y=100 85y+1=86 45x-50=40 3x+5x=48 14x8x=12 24-3x=3 x+18=20 2x-8=8 4y+2=3 3x+6=18 8+6x=38 5x+8x=260 y+5y=96 3x-1=8 20x-50=50 9-4x=1 23y+y=88 3x+5=17 4x-20=8 5x+5=15 4y+2=6 2x+3=10 19y+y=40 2x-8=8 89x-9=80 5x8x=260 x3=4.65.6 5x15=65 1.2x=48 0.5x4=22 m0.7=1.2(0.5+x)+x=9.82 2(X+

6、X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8 7.5*2X=15 1.2x=81.6 x+5.6=9.4 x-0.7x=3.6 91x1.3 X+8.3=10.7 15x3 3x816 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x5=4.8 30x+25=85 1.48-2x=6 6x-12.83=0.06 410-3x=170 3(x+0.5)=21 0.5x+8=43 6x-3x=18 1.5x+18=3x 53-x2=8 0.273x=0.35 5(x+5)

7、=100 x+3x=70 3(x+3)=50 1.8x=0.972 x0.756=90 9x-40=5 x5+9=21 48-27+5x=31 10.5+x+21=56 x+2x+18=78 (200-x)5=30 (x-140)70=4 0.1(x+6)=3.30.4 4(x-5.6)=1.6 (27.5-3.5)x=44(x-5.6)=1.6 (27.5-3.5)x=4 x+19.8=25.8 5.6x=33.6 9.8-x=3.8 75.6x=12.6 5x+12.5=32.3 5(x+8)=102 x+3x+10=70 3(x+3)=50-x+3 5x+15=60 3.5-5x=2 0

8、.37+4x=12.5 x1.5-1.25=0.75 4x-1.36=2.6 20-9x=1.26.25 6x+12.8=15.8 1502+3x=690 2x-20=4 3x+6=18 2(2.8+x)=10.4 (x-3)2=7.5 13.2x+9x=33.3 3x=x+100 x+4.8=7.2 6x+18=48 3(x+2.1)=10.5 12x-9x=8.7 13(x+5)=169 2x-97=34.2 3.4x-48=26.8 42x+25x=134 1.5(x+1.6)=3.6 2(x-3)=5.8 65x+7=42 9x+42.591 4.2 x+2.5x134 10.5x+6

9、.5x=51 89x-43x=9.2 5x-45=100 1.2x-0.5x=6.3 23.4=2x=56 4x-x=48.6 4.5x-x=28 X-5.7=2.15 15 5X-2X=18 3X+0.7=5 3.52= 4.2+x 261.5= 2x+10 0.516160.2=4x 13 9.25X=0.403 16.9X=0. 3 23x=14x14 x14x=65 35x80 1.8 +6x54 6.7x60.36.7 94x40 2x+8=16 23x-14x=14 x+7x=8 9x-3x=6 6x-8=4 5x+x=9 x-8=6x 4/5x=20 2x-6=12 7x+7=1

10、4 6x-6=0 5x+6=11 2x-8=10 1/2x-8=4 x-5/6=7 3x+7=28 3x-7=26 9x-x=16 24x+x=50 6/7x-8=4 3x-8=30 6x+6=12 3x-3=1 5x-3x=4 2x+16=19 5x+8=19 14-6x=8 15+6x=27 5-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17 9+6x=14 x+9x=4+7 2x+9=17 8-4x=6 6x-7=12 7x-9=8 x-56=1 8-7x=1 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11

11、 6-2x=11 x+4+8=23 7x-12=8 X-5.7=2.15 15 5X-2X=18 3X 0.7=5 3.52= 4.2 x 261.5= 2x 0.516160.2=4x 9.25X=0.403 16.9X=0.3 X0.5=2.6 35x80 1.8-6x54 6.7x60.36.7 94x40 0.2x0.40.53.7 9.4x0.4x16.2 124x20 1/3x5/6x1.4 12x34x=1 18x14x=12 23 x514=14 1234x=56 2214x=12X+8.3=10.7 5x 30 x-5.6=9.4 x0.8=90 3x816 3x+9=27

12、5.3+7x=7.4 3x5=4.8X-0.8X=6 12x+8x=4.8 7(x-2)=49 48+2x=36 (x-2)3=7 x5+9=21 (200-x)5=30 48-27+5x=31 X-7.7=2.85 5X-3X=68 4X+10=5 320=45+6X X-0.6X=8 x+8.6=9.4 522x15 13x 1.3 X+8.3=19.7 15x 30 3x+936 7(x-2)=7 3x+9=12 18(x-2)=27 12x=320+4x 5.37+x=7.47 153x=5 30x=85 1.8+2x=6 420-3x=170 3(x+5)=18 0.5x+9=40

13、6x+3x=36 1.5x+6=3x 53-x=8 40-8x=5 x5=21 48-20+5x=31 x+2x+8=80 200-x5=30 70x =4 45.6- 3x =1.6 9.8-2x=3.8 5(x+5)=100 x+3x=70 3(x+3)=50 4（4x1）=3（22x） 7（2x-6）=845（x-8）=3x 7x-7=6x+422-x+2=68x 8x-6x+30=12x+157（x+2）=5x+60 240（x7）=30 （20-8x）3=2x+1 （6x-40）8=5x-8 128x=3 （21+4x）2=10x+14 8x-156=3x-20 （2x+7）2=4x

14、+143x+9=27 7x+5.3=7.4 x+5.6=9.4 1.2x=81.63x-8=30 6x+6=12 3x-3=1 5x-3x=4 2x+16=195x+8=19 15+6x=27 7x+8=15 4+5x=9 8x+9=179+6x=14 x+9x=4+7 2x+9=17 6x-7=12 7x-9=8 x-56=1 1.2x=81.6 3200=450+5x+x x-0.8x=6 12x-8x=4.8 x-0.7x=3.6 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11 x+8.3=10.7 15x 3 3x816 3x5=4.8 x

15、+2x+18=78 0.5x+8=43 6x-3x=18 1.8x=0.972 x0.756=90 9x-40=56x-12.83=0.06 x5+9=21 48-27+5x=31 10.5+x+21=560.1(x+6)=3.30.4 3200=450+5x+x x-0.8x=6 12x-8x=4.8 7.52x=15 x+5.6=9.4 x-0.7x=3.6 x+8.3=10.7 15x 3 3x-816 3x+9=27 7x+5.3=7.4 3x5=4.8 6x-12.83=0.06 0.5x+8=43 6x-3x=18 1.8x=0.972 x0.756=90 9x-40=5 x5+9

16、=21 48-27+5x=31 10.5+x+21=56 x+2x+18=78 x+19.8=25.8 5.6x=33.6 5x+12.5=32.3 x+3x+10=70 5x+15=60 0.37+4x=12.5 x1.5-1.25=0.75 4x-1.36=2.6 6x+12.8=15.81502+3x=690 2x-20=4 3x+6=18 13.2x+9x=33.3 x+4.8=7.26x+18=48 12x-9x=8.7 2x-97=34.2 3.4x-48=26.8 42x+25x=13465x+7=42 9x+42.591 4.2 x+2.5x134 10.5x+6.5x=518

17、9x-43x=9.2 5x-45=100 1.2x-0.5x=6.3 4x-x=48.6 4.5x-x=28x-5.7=2.15 5x-2x=18 3x+0.7=5 3.52= 4.2+x 261.5= 2x+100.516160.2=4x x14x=65 1.8 +6x54 6.7x -60.36.794x 40 2x+8=16 23x-14x=14 x+7x=8 9x-3x=6 7x-12=9 6x-8=4 5x+x=9 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 3x+7=28 3x-7=26 9x-x=16 24x+x=50 x+4+8=23 x-5.

18、7=2.15 5x-2x=18 3x-0.7=5 261.5= 2x 0.516-160.2=4x x0.5=2.6 9 4x40 0.2x0.40.53.7 9.4x0.4x16.2 6.7x60.36.7 18x14x=12 23 x514=24 1234x=56X-7.7=2.85 5X-3X=68 4X+10=5 320=45+6X X-0.6X=8 x+8.6=9.4 522x15 13x 1.3 X+8.3=19.7 15x 30 3x+936 7(x-2)=7 3x+9=12 18(x-2)=27 12x=320+4x,5.37+x=7.47 153x=5 30x=85 1.8+

19、2x=6 420-3x=170 3(x+5)=180.5x+9=40 6x+3x=36 1.5x+6=3x 53-x=8 40-8x=5 x5=2148-20+5x=31 x+2x+8=80 200-x5=3070x =4 45.6- 3x =1.6 9.8-2x=3.8 (0.5+x)+x=9.822(X+X+0.5)=9.825000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5x2X=15x-0.7x=3.63x8167(x-2)=2x+318(x-2)=27012x=300-4x7x+5.3=7.430x+25=851.48-2x=66x-12.83=0.063(x+0.5)=2153-x2=8x0.756=90x5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78(200-x)5=30(x-140)70=40.1(x+6)=3.30.44(x-5.6)=1.632y-29=35x+5=1589x-9=80100-20x=2055x-25x=6076y-75=123y-23=234x-20=080y+20=10053x-90=162x+9x=1112y-12=24