Question

resolva a equaçao a)3(2x+3)-4(x-1)=3

Answer 1

Olá !


Observe o esquema de resolução abaixo...


$\mathsf{3(2X + 3) - 4(X - 1) = 3} \\\\\\ \mathsf{6X + 9 - 4X + 4 = 3} \\\\\\ \mathsf{6X - 4X + 9 + 4 = 3} \\\\\\ \mathsf{6X - 4X + 13 = 3} \\\\\\ \mathsf{6X - 4X = 3 - 13} \\\\\\ \mathsf{6X - 4X = -10} \\\\\\ \mathsf{2X = -10} \\\\\\ \mathsf{X =\dfrac{(-10)}{2}} \\\\\\ \mathsf{X = -5}$



$\textbf{RESPOSTA~~~~:}$ S = {-5}