✅ Após resolver a equação do primeiro grau, concluímos que seu conjunto solução é:
[tex]\Large\displaystyle\text{$\begin{gathered}\boxed{\boxed{\:\:\:\bf S = \{-2\}\:\:\:}}\end{gathered}$}[/tex]
Resolvendo equação do primeiro grau:
[tex]\Large\displaystyle\text{$\begin{gathered}\tt 10x + 20 = 0\end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered}\tt 10x = -20\end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered}\tt x = -\frac{20}{10}\end{gathered}$}[/tex]
[tex]\Large\displaystyle\text{$\begin{gathered}\tt x = -2\end{gathered}$}[/tex]
✅ Portanto, o conjunto solução é:
[tex]\Large\displaystyle\text{$\begin{gathered}\tt S = \{-2\}\end{gathered}$}[/tex]
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