五年级下册数学解方程240题

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1、(0.5+x)+x=9.8÷22(X+X+0.5)=9.825000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5X2x=151.2x=81.6x+5.6=9.4x-0.7x=3.691÷x＝1.3X+8.3=10.715x＝33x－8＝167(x-2)=2x+33x+9=2718(x-2)=27012x=300-4x7x+5.3=7.43x÷5=4.830÷x+25=851.4×8-2x=66x-12.8×3=0.06410-3x=1703(x+0.5)=210.5x+8=436x-3x=187(6.5+x)=

2、87.51.5x+18=3x5×3-x÷2=80.273÷x=0.351.8x=0.972x÷0.756=909x-40=5x÷5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78(200-x)÷5=30(x-140)÷70=420-9x=1.2×6.250.1(x+6)=3.3×0.4(27.5-3.5)÷x=4x+19.8=25.85.6x=33.69.8-x=3.875.6÷x=12.65x+12.5=32.35(x+8)=102x+3x+10=705x+15=603.5-5x=20.3×7+4x=12.53X+

3、0.7=53.5×2=4.2+x26×1.5=2x+100.5×16―16×0.2=4x139.25－X=0.40316.9÷X=0.323x=14x＋14x＋14x=653－5x＝801.8+6x＝549＋4x＝402x+8=1623x-14x=14X+7x=89x-3x=66x-8=225x+x=9x-8=6x2x-6=127x+7=146x-6=05x+6=112x-8=102.5x-8=43x+7=283x-7=269x-x=1624x+x=501.2x-8=43x-8=306x+6=123x-3=15x-3x=42x+16=195x+

4、8=1914-6x=815+6x=275-8x=47x+8=159-2x=14+5x=910-x=88x+9=179+6x=14x+9x=4+72x+9=178-4x=66x-7=127x-9=8x-56=18-7x=1x-30=126x-21=216x-3=69x=184x-18=135x+9=116-2x=11x+4+8=237x-12=85X-2X=189.25－X=0.403X÷0.5=2.690－5x＝801.8-6x＝546.7x－60.3＝6.79＋4x＝400.2x－0.4＋0.5＝3.79.4x－0.4x＝16.212－4x＝

5、202x＋34x=118x－14x=1223x－5×14=1412＋34x=5622－14x=12X+8.3=10.75x＝30x-5.6=9.4x÷0.8=903x－8＝163x+9=275.3+7x=7.4X-0.8X=612x+8x=4.87(x-2)=494×8+2x=36(x-2)÷3=7　9-x=391÷x＝1.341-3x=1781÷3x=9x-7.7=2.85 5x-3x=68    4x+10=18  321=45+6x   x-0.6x=8          x+8.6=9.4 52－2x＝15    13÷x ＝1.3  

6、     x+8.3=19.7     15x ＝30        3x+9＝36           7(x-2)=7       3x+9=12     18(x-2)=27       12x=320+4x        5.37+x=7.47         15÷3x=5     30÷x=75         1.8+2x=6        420-3x=180             3(x+5)=18    0.5x+9=40        6x+3x=36             1.5x+6=3x 5×3-x=8     

7、    40-8x=5           x÷5=21      48-20+5x=31     x+2x+8=80        200-x÷5=30                   70÷x =4      45.6- 3x =1.6   9.8-2x=3.8                 5(x+5)=100   x+3x=70               3(x+3)=50 5x＋2x=1.4＋0.07   6x－3x=6÷5    x－13.4＋5.2=1.57 0.4×25－3.5x=6.5    7x＋3×1.4x=0.2

8、×56  5×(3－2x)=2.4×5 7.5x＋x=10.2       (1.5＋x)×2=9         15x－5x＋16=80 15.6