Question

$2x - 4 = \times + 9$
me ajudem pfvr!​

Answer 1

Resposta:

$x=13$

Explicação passo a passo:

$2x -4=x+9$

$2x\bold {\underline{-x}}-4\bold {\underline{+4}}=x\bold {\underline{-x}}+9\bold {\underline{+4}}$

$x=13$