Question

Me ajuda aq pessoal -- 2(x+1)-(x-1)=0

Answer 1

2(x+1)-(x-1)=0
2x+2-x+1=0
x+3=0
x=-3

Answer 2

-- 2(x+1)-(x-1)=0
2x+2-x+1 = 0
2x-x = -2-1
x = -3