8.(X+0.4)=8.5
问题描述:
8.(X+0.4)=8.5
答
8.(X+0.4)=8.5
8x+3.2=8.5
8x=5.3
x=0.6625
8.(X+0.4)=8.5
8.(X+0.4)=8.5
8x+3.2=8.5
8x=5.3
x=0.6625