解方程（一） 姓名：X2.8=9 6x=8.4 x1.8=4 x6=3.6 x-2.72=3.8X2.5=0.8 4x+18=30 1.83+5x=15.4 16+8x=40 3.4x-68=26.82x5.2=2.8 2x+2.82=10.4 5x5.5=7 3x44=65 6x2.7=1.5(x3)9=63 13(x5)=169 (x3)2=7.5 15(x0.6)=18 2xx=3.3(2.81x)2=5.62 7(x1.2)=2.1 4x6=36 7(x1.2)=2.1 (x3)4=7.210x2x=24 x1.8x=22.4 5.4xx=12.8 x2.4x=5.1 5.9x2.4x=7c Om5x1.4x=7.2 3.8x2.45x=13.5 12x9x=8.7 6x2.1=8.28 5(x2.4)=15解方程（二）x k b 1 .c o m 姓名：4x0.4=9.4 0.6x0.43=4.2 2x1.9=2.5 4x1.5x=4.4 3.6x1.2x=242x4=1.5 6x0.25=5.2 4x36=96 2(x9.7)=34.2 6(x1.5)=13.2X0.68x=16 8x4=16 9x34=11 3x-1.2=2.4 12x9x=8.7Om6x18=48 3(x2.1)=10.5 x+4.8=7.2 2x0.38=1.2 5x15=205(x2.3)=25.5 3(x1.7)=3.6 2(x23)=50 (x7)3=12 2x-0.78=2.41.85x=5.6 30x2=360 9(x3.4)=67.5 8x7.24=40.8 8.4x3.6x=45.6