4.2x+4.2(x+0.5)+28.9=367解方程

问题描述:

4.2x+4.2(x+0.5)+28.9=367解方程

4.2x+4.2(x+0.5)+28.9=367
4.2x+4.2x+2.1+28.9=367
8.4x+31=367(移项)
8.4x=336
x=336/8.4
x=40