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1、(0.5+x)+x=9.82 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8 7.5X2x=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=851.48-2x=6 6x-12.83=0.06 410-3x=1703(x+0.5)=21 0.5x+8=43 6x-3x=18 7(6.5+x)=87.51.5x+18
2、=3x 53-x2=8 0.273x=0.35 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 20-9x=1.26.250.1(x+6)=3.30.4 (27.5-3.5)x=4 x+19.8=25.8 5.6x=33.6 9.8-x=3.875.6x=12.6 5x+12.5=32.35(x+8)=102 x+3x+10=70 5x+15=60 3.5-5x=2 0.37+4x=12.5 3X+0.7=53.52= 4.2+x 261.5= 2x
3、+10 0.516160.2=4x 13 9.25X=0.40316.9X=0.3 23x=14x14 x14x=65 35x80 1.8 +6x54 94x40 2x+8=16 23x-14x=14 X+7x=8 9x-3x=66x-8=225x+x=9 x-8=6x2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 2.5x-8=4 3x+7=28 3x-7=26 9x-x=16 24x+x=501.2x-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
4、=15 9-2x=1 4+5x=9 10-x=8 8x+9=179+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=135x+9=11 6-2x=11 x+4+8=237x-12=85X-2X=18 9.25X=0.403 X0.5=2.6 905x80 1.8-6x546.7x60.36.7 94x40 0.2x0.40.53.7 9.4x0.4x16.2124x202x34x=1 18x14x=12 23 x514=14 1234x=56 2214x
5、=12X+8.3=10.75x 30 x-5.6=9.4 x0.8=903x816 3x+9=275.3+7x=7.4 X-0.8X=6 12x+8x=4.8 7(x-2)=49 48+2x=36(x-2)3=79-x=3 91x 1.3 41-3x=17 813x=9x-7.7=2.855x-3x=684x+10=18321=45+6xx-0.6x=8x+8.6=9.4522x1513x1.3x+8.3=19.715x303x+9367(x-2)=73x+9=1218(x-2)=2712x=320+4x5.37+x=7.47153x=530x=751.8+2x=6420-3x=1803(x+
6、5)=180.5x+9=406x+3x=361.5x+6=3x53-x=840-8x=5x5=2148-20+5x=31x+2x+8=80200-x5=3070x=445.6-3x=1.69.8-2x=3.85(x+5)=100x+3x=703(x+3)=505x2x=1.40.076x3x=65x13.45.2=1.570.4253.5x=6.57x31.4x=0.2565(32x)=2.457.5xx=10.2(1.5x)2=915x5x16=8015.643.5x=1.15x412=22.5(27.5-3.5)x=4x+19.8=25.85.6x=33.69.8-x=3.875.6x=1
7、2.65x+12.5=32.33(x+3)=50-x+35x+15=600.37+4x=12.5x1.5-1.25=0.754x-1.36=2.66x+12.8=15.81502+3x=6902x-20=43x+6=182(2.8+x)=10.4(x-3)2=7.513.2x+9x=33.33x=x+100x+4.8=7.26x+18=483(x+2.1)=10.512x-9x=8.713(x+5)=1692x-97=34.23.4x-48=26.842x+25x=1341.5(x+1.6)=3.62(x-3)=5.865x+7=429x+42.5914.2x+2.5x13410.5x+6.5x=5189x-43x=9.25x-45=1001.2x-0.5x=6.323.4=2x=564x-x=48.64.5x-x=28X-5.7=2.153X+0.7=516.9X=0.3x14x=60835x808+6x5494x492x+8=16023x-14x=18x+7x=809x-3x=606x-8=405x+4x=9
五年级下册数学解方程240题
