Question

5x+7=-12x pfv me ajudem​

Answer 1

$\LARGE\displaystyle{}5x + 7 = - 12x \\\LARGE\displaystyle{}5x = - 12x - 7 \\ \LARGE\displaystyle{}5x + 12x = - 7 \\ \LARGE\displaystyle{}17x = - 7 \\ \LARGE\displaystyle{}\LARGE\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{ x = - \dfrac{7}{17} }}}\end{gathered} }$

$\LARGE\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{{ \red{Bons}} \blue{\:Estudos}}}}\end{gathered} }$

Answer 2

Resposta:  -7/12

Explicação passo a passo:

Equação do 1º grau

5x+7=-12x

5x+12x==-7

17x=-7

x=-7/12