Question

Resolva as equacoes a) -3(x-5)+3=0 b 4x+7=0

Answer 1

Resposta:

a)

$- 3(x - 5) + 3 = 0 \\ - 3x + 15 + 3 = 0 \\ - 3x + 18 = 0 \\ - 3x = - 18 \\ 3x = 18 \\ x = \frac{18}{3} \\ \boxed{x = 6}$

b)

$4x + 7 = 0 \\ 4x = - 7 \\ \boxed{x = - \frac{7}{4} }$