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+X91x 1.312x=300-4xX-0.8X=6X+8.3=10.77x+5.3=7.412x-8x=4.815x33x 5=4.87.5 2X=153x8 1630 x+25=851.4 8-2x=61.5x+18=3x48-27+5x=316x-12.8 3=0.0653-x 2=810.5+x+21=56410-3x=1700.273 x=0.35x+2x+18=783(
2、x+0.5)=211.8x=0.972(200-x) 5=300.5x+8=43x0.756=90(x-140) 70=46x-3x=189x-40=520-9x=1.2 6.257(6.5+x)=87.5x5+9=210.1(x+6)=3.30.4(27.5-3.5)x=4x+3x+10=706x+12.8=15.8x+19.8=25.83(x+3)=50-x+31502+3x=6905.6x=33.65x+15=602x-20=49.8-x=3.83.5-5x=23x+6=1875.6 x=12.60.3 7+4x=12.52(2.8+x)=10.45x+12.5=32.3x1.5-1.2
3、5=0.75(x-3) 2=7.55(x+8)=1024x-1.3 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+42.5 914x-x=48.62x-97=34.24.2 x+2.5x 1344.5x-x=28X-5.7=2.1516.9 X=0.32x+8=1615 5X-2X=1823x=14x1423x-14x=143X+0.7=5x14x=653.5 2= 4.2+x35x 80261.5= 2x+101.8 +6x 540.5 16 160.2=4x6.7x 60.3 6.713 9.25 X=0.40394x 40
