Question

alguém me ajuda 4 (2x-3)=8 (2x+5)​

Answer 1

Resposta:

4(2x-3)=8(2x+5)

2x-3=8/4 (2x+5)

2x-3=2(2x+5)

2x-3=4x+10

2x-4x=10+3

-2x=13

x = - 13/2

Answer 2

✅ Após resolver a equação do primeiro grau, concluímos que seu conjunto solução é:

    $\Large\displaystyle\text{ \begin{gathered}\boxed{\boxed{\:\:\:\bf S = \Bigg\{-\frac{13}{2}\Bigg\}\:\:\:}}\end{gathered} }$

Resolvendo equação do primeiro grau:

     $\Large\displaystyle\begin{gathered}\tt 4(2x - 3) = 8(2x + 5)\end{gathered}$

         $\Large\displaystyle\begin{gathered}\tt 8x - 12 = 16x + 40\end{gathered}$

       $\Large\displaystyle\begin{gathered}\tt 8x - 16x = 40 + 12\end{gathered}$

                 $\Large\displaystyle\begin{gathered}\tt -8x = 52\end{gathered}$

                        $\Large\displaystyle\begin{gathered}\tt x = -\frac{52}{8}\end{gathered}$

                        $\Large\displaystyle\begin{gathered}\tt x = -\frac{13}{2}\end{gathered}$

✅ Portanto, o conjunto solução:

                $\Large\displaystyle\text{ \begin{gathered}\tt S = \Bigg\{-\frac{13}{2}\Bigg\}\end{gathered} }$

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