解方程练习题100道

解方程练习题解方程练习题 12x-9x=8.712x-9x=8.7 2(x-3)=5.82(x-3)=5.8 3x3x－－8 8＝＝1616 15x15x＝＝3 3 2x+16=192x+16=19 (200-X)(200-X)÷÷5=305=30 5 5××3-X=83-X=8 3X-3=13X-3=1 X X÷÷78=10.578=10.5 7X+7=147X+7=14 14X+82=15014X+82=150 7(x-2)=497(x-2)=49 150150××2+3x=6902+3x=690 x+2x+18=78x+2x+18=78 x x÷÷5+9=215+9=21 5.3+7x=7.45.3+7x=7.4 179X+247=59179X+247=59 30X-12X-14X=130X-12X-14X=1 8X-3X=1058X-3X=105 3X+5X=483X+5X=48 X+0.5X=6X+0.5X=6 22-14 X= 1222-14 X= 12 3x+7=283x+7=28 65x+7=4265x+7=42 6.7x6.7x－－60.360.3＝＝6.76.7 23x=14x23x=14x＋＋1414 2x-6=122x-6=12 (27.5-3.5)(27.5-3.5)÷÷x=4x=4 2X+8=162X+8=16 40-8X=540-8X=5 7.9X-X=8.977.9X-X=8.97 0.7X=4.20.7X=4.2 5X+X=95X+X=9 32-22X=1032-22X=10 7x-9=87x-9=8 4x-1.34x-1.3××6=2.66=2.6 4.5x-x=284.5x-x=28 5X-2X=185X-2X=18 9x-3x=69x-3x=6 6x-12.86x-12.8××3=0.063=0.06 5X+8=195X+8=19 4X-34X-3××9=299=29 5 5（（X-6X-6））=20=20 3X+7=283X+7=28 X X÷÷5=105=10 8.88.8÷÷X=4.4X=4.4 2x=562x=56 7(x-2)=2x+37(x-2)=2x+3 8-7x=18-7x=1 x+9x=4+7x+9x=4+7 8181÷÷3x=93x=9 6x-3x=186x-3x=18 2X+9=312X+9=31 73.2-X=52.573.2-X=52.5 15+6X=2715+6X=27 6X+6=126X+6=12 4X-X=48.64X-X=48.6 3939÷÷X=3X=3 30 x-5.6=9.430 x-5.6=9.4 5(x+8)=1025(x+8)=102 1.5x+18=3x1.5x+18=3x 6x-3=66x-3=6 9191÷÷x x＝＝1.31.3 5x+12.5=32.35x+12.5=32.3 8X+9=178X+9=17 X-6=12X-6=12 ( (８８+X)+X)÷÷5=155=15 7X+7=147X+7=14 X X÷÷2.5=1002.5=100 X+3=18X+3=18 9-2x=19-2x=1 2x+9=172x+9=17 3200=450+5X+X3200=450+5X+X 42x+25x=13442x+25x=134 x x÷÷5+9=215+9=21 9+6x=149+6x=14 3X-7=263X-7=26 3X-3=13X-3=1 X X××9=4.59=4.5 5.3+7X=7.45.3+7X=7.4 5X-45=1005X-45=100 3X-8=303X-8=30 x+3x+10=70 x+3x+10=70 9 9＋＋4x4x＝＝4040 6x-8=46x-8=4 2222－－14x=1214x=12 0.1(x+6)=3.30.1(x+6)=3.3××0.40.4 1616××0.2=4x0.2=4x 56-2X=2056-2X=20 7X+8=157X+8=15 X+7X=8X+7X=8 10-X=810-X=8 28+6X=8828+6X=88 126126÷÷X=42X=42 146X+214=26146X+214=26 7x+7=147x+7=14 1.8 +6x1.8 +6x＝＝5454 13X+81=14913X+81=149 X X÷÷5=105=10 2X-7.5=8.52X-7.5=8.5