Question

2× +1 = 7
Alguém me ajuda?

Answer 1

Resposta:  3

Explicação passo a passo:

2x+1=7

2x=7-1

2x=6

x=6/2

x=3

Answer 2

$\Large\displaystyle\begin{gathered} \sf{ 2x+1=7} \end{gathered}$

$\Large\displaystyle\begin{gathered} \sf{2x=7-1 } \end{gathered}$

$\Large\displaystyle\begin{gathered} \sf{ 2x=6} \end{gathered}$

$\Large\displaystyle\text{ \begin{gathered} \sf{x=\frac{6}{2} } \end{gathered} }$

$\Large\displaystyle\begin{gathered} \sf{ x=3} \end{gathered}$