Question

determine a raiz da equação: 10-3(x-1)=2(2x+3)+5(x+1)

Answer 1

10 - 3(x - 1) = 2(2x + 3) + 5(x + 1)  =>
7(x - 1) = 4x + 6 + 5x + 5  =>
7x - 7 = 4x + 6 + 5x + 5  =>
7x - 4x - 5x = 6 + 5 + 7  =>
-2x = 18  =>
x = 18/-2  =>
x = -9