Question

alguem sabe quanto e 3(2x+3)-4(×-1)=3

Answer 1

3(2x+3) -4 (x-1)= 3
6x + 9 -4 (x-1) =3
6x +9 -4x + 4 =3
2x + 9 + 4 = 3
2x + 13 = 3
2x = 3 - 13
2 x = -10
x = -10 : 2
x = - 5