如果2(x-2)的值与3(x-1)的值互为相反数,那么x等于多少

问题描述:

如果2(x-2)的值与3(x-1)的值互为相反数,那么x等于多少

2(x-2)+3(x-1)=0
2x-4+3x-3=o
-x=7
x=-7

由题意知,2(x-2)=-3(x-1)
2x-4 =-3x+3
2x+3x=3+4
5x=7
x=7/5

2(x-2)=-3(x-1)
2x-4=-3x+3
5x=7
x=1.4

2(x-2)=3(x-1)
2x-4=-3x+3
5x=7
x=5\7

2(x-2)=-3(x-1)
2x-4=-3x+3
5x=7
x=7/5

1.2

-1