12-3(X+1)=6-2(X+2),怎么解方程?急
问题描述:
12-3(X+1)=6-2(X+2),怎么解方程?急
答
12-3(X+1)=6-2(X+2)
12-3x-3=6-2x-4
9-3x=2-2x
x=7