3(x+2/3)-(x-1)=7
问题描述:
3(x+2/3)-(x-1)=7
急
答
3x+2-x+1=7
2x=4
x=2
3(x+2/3)-(x-1)=7
急
3x+2-x+1=7
2x=4
x=2