Question

2 × +1 = 7
Alguém me ajuda??

Answer 1

• $\Large\displaystyle\begin{gathered} \sf{2x+1=7 } \end{gathered}$
• $\Large\displaystyle\begin{gathered} \sf{2x=7-1 } \end{gathered}$
• $\Large\displaystyle\begin{gathered} \sf{ 2x=6} \end{gathered}$
• $\Large\displaystyle\text{ \begin{gathered} \sf{ x=\frac{6}{2}} \end{gathered} }$
• $\Large\displaystyle\text{ \begin{gathered} \boxed{\sf{ x=3} }\end{gathered} }$