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1、(0.5+x)+x=9.8 +21.2x=81.67(x-2)=2x+32(X+X+0.5)=9.8x+5.6=9.43x+9=2725000+x=6xx-0.7x=3.618(x-2)=2703200=450+5X+X91+x=1.312x=300-4xX-0.8X=6X+8.3=10.77x+5.3=7.412x-8x=4.815x=33x+5=4.87.5 X2X=153x 8=1630+ x+25=851.4 义 8-2x=61.5x+18=3x48-27+5x=316x-12.8 X 3=0.065 X 3-x + 2=810.5+x+21=56410-3x=1700.273+x=0
2、.35x+2x+18=783(x+0.5)=211.8x=0.972(200-x) +5=300.5x+8=43x +0.756=90(x-140) +70=46x-3x=189x-40=520-9x=1.2 X6.257(6.5+x)=87.5x +5+9=210.1(x+6)=3.3 X0.4(27.5-3.5) +x=4x+3x+10=706x+12.8=15.8x+19.8=25.83(x+3)=50-x+3150X2+3x=6905.6x=33.65x+15=602x-20=49.8-x=3.83.5-5x=23x+6=1875.6 +x=12.60.3 X7+4x=12.52(2.
3、8+x)=10.45x+12.5=32.3x+1.5-1.25=0.75(x-3) +2=7.55(x+8)=1024x-1.3 X 6=2.613.2x+9x=33.33x=x+1003.4x-48=26.810.5x+6.5x=51x+4.8=7.242x+25x=13489x-43x=9.26x+18=481.5(x+1.6)=3.65x-45=1003(x+2.1)=10.52(x-3)=5.81.2x-0.5x=6.312x-9x=8.765x+7=4223.4=2x=5613(x+5)=1699x+4X2.5 =914x-x=48.62x-97=34.24.2 x+2.5x =1344.5x-x=28X-5.7=2.1516.9 +X=0.32x+8=1613 9.25 -X=0.4039 + 4x=4015 5X-2X=183X+0.7=53.5 X 2= 4.2+x26X1.5= 2x+100.5 X 16 16X0.2=4x23x=14x+14x +14x=653 5x=801.8 +6x =546.7x -60.3 =6.723x-14x=14