Question

raiz da equação 5 · (x + 4) – (x – 1) = 40

Answer 1

✅ Após ter resolvido a equação do primeiro grau, concluímos que o valor de "x" é:

                        $\Large\displaystyle\begin{gathered}\tt x = \frac{19}{4} \end{gathered}$

Resolvendo equação do primeiro grau:

       $\Large\displaystyle\begin{gathered}\tt 5\cdot(x + 4) - (x - 1) = 40\end{gathered}$

                $\Large\displaystyle\begin{gathered}\tt 5x + 20 - x + 1 = 40\end{gathered}$

                $\Large\displaystyle\begin{gathered}\tt 5x - x = 40 - 20 -1\end{gathered}$

                         $\Large\displaystyle\begin{gathered}\tt 4x = 19\end{gathered}$

                           $\Large\displaystyle\begin{gathered}\tt x = \frac{19}{4} \end{gathered}$

✅ Portanto, o valor de "x" é:

                           $\Large\displaystyle\begin{gathered}\tt x = \frac{19}{4} \end{gathered}$  

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