当x取何值时,代数式2(x-1)与3(1-x)的差等于5?
问题描述:
当x取何值时,代数式2(x-1)与3(1-x)的差等于5?
答
2(x-1)-3(1-x)=5
x=2
当x取何值时,代数式2(x-1)与3(1-x)的差等于5?
2(x-1)-3(1-x)=5
x=2