Expand and simplify
2(x-1) - (3x-2)

2(x - 1) - (3x - 2) 

First, simplify brackets. / Your problem should look like: 2(x - 1) - 3x + 2
Second, expand. / Your problem should look like: 2x - 2 - 3x + 2
Third, gather like terms. / Your problem should look like: (2x - 3x) + (-2 + 2)
Fourth, simplify. / Your problem should look like: -x

 -x

Ithink if im not mistaking b is -3 but im not a 100% sude