Question

I) 3. (2× -5) = 9 - 2x

Answer 1

$\LARGE\tt{}3(2x - 5) = 9 - 2x \\ \LARGE\tt{}6x - 15 = 9 - 2x \\ \LARGE\tt{}6x - 15 + 2x = 9 \\ \LARGE\tt{}6x + 2x = 9 + 15 \\ \LARGE\tt{}8x = 9 + 15 \\ \LARGE\tt{}8x = 24 \\ \\ \LARGE\tt{}x = \dfrac{24}{8} \\ \\ {\large\boxed{\boxed{  { \LARGE \tt x = 3}}}}$

Bons estudos!

Answer 2

Resposta:

x = 3

Explicação passo-a-passo:

$3. (2x -5) = 9 - 2x \\ \\ 6x -15 = 9 - 2x \\ \\ 6x + 2x = 9 + 15 \\ \\ 8x = 24 \\ \\ x = \frac{24}{8} \\ \\ x = 3$