解方程 100道练习题

解方程练习题

3(x+0.5)=21 7÷X=0.1 81÷3x=94X-X=48.6 (27.5-3.5)÷x=4 32-22X=10

30 x-5.6=9.48X+9=17

12x=300-4x 9-X=4.5

48-27+5x=31 2X=32

0.5x+8=43 56÷X=5 14X+82=150 179X+247=59 5x+9=11 2X-8=10 5x+12.5=32.3 X+3=18

122X+190=2 187X+255=67

(0.5+x)+x=9.8÷2 79.4+X=95.5

91÷x＝1.3 15+6X=27 239X+100=10 156X+15=177 x÷5+9=21 X+0.5X=6

3(x+3)=50-x+3 4X+2=6 6x-3x=18 39÷X=3

x+19.8=25.8 6X-7=12

18(x-2)=270 95X+1=69

118X+186=254 235X+47=115 1.2x-0.5x=6.3 20-2X=6 100X+6=74 61X+129=197

5X-2X=18 3X+7=28

4.2x+2.5x＝134 X+25=100

x+4.8=7.2 4×8+2X=36

3.5-5x=2 3X+6=18

5x-3x=4 X-5÷6=7

1.8x=0.972 12X+8X=40 23 x－5×14=14 8-7X=1

218X+30=98 127X+195=7

5x+x=9 9X-3X=6

6.7x－60.3＝6.7 5-8X=4

9+6x=14 3X-8=30 16.9÷X=0.3 18X-14 X= 12 2x-8=10 4÷5X=20

x÷5+9=215X-45=100

x+5.6=9.4 X-77=275 (x-3)÷2=7.5 X-0.8X=6 (200-x)÷5=30 40X+61=223

9x+4×2.5＝91 X÷5=215

5X-2X=18 6(X-3)=12

15+6x=27 5X+6=11

5.6x=33.6 24-3X=3

x+9x=4+7 6X+6=12

(x-140)÷70=4 6×5+2X=44 70X+138=206 135X+203=15

6x+12.8=15.8 0.2X+0.5=3.7

0.1(x+6)=3.3×0.4 28+6X=88 16.9÷X=0.3 6.75 -X=1.68 198X+78=93 131X+199=11