Respuesta:
[tex] \underline \texttt{Ecuación}[/tex]
[tex]7(x + 8) = - 7 \\ 7x + 56 = - 7 \\ 7x = - 7 - 56 \\ 7x = - 63 \\x = - \frac{63}{7} \\ \color{red} \boxed{x = - 9}[/tex]
[tex]\underline \texttt{Comprobación}[/tex]
[tex]7(x + 8) = - 7 \\ 7( - 9 + 8) = - 7 \\ - 63 + 56 = - 7 \\ \color{red} \boxed{ - 7 = - 7}[/tex]
Espero te sirva :)
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Respuesta:
[tex] \underline \texttt{Ecuación}[/tex]
[tex]7(x + 8) = - 7 \\ 7x + 56 = - 7 \\ 7x = - 7 - 56 \\ 7x = - 63 \\x = - \frac{63}{7} \\ \color{red} \boxed{x = - 9}[/tex]
[tex]\underline \texttt{Comprobación}[/tex]
[tex]7(x + 8) = - 7 \\ 7( - 9 + 8) = - 7 \\ - 63 + 56 = - 7 \\ \color{red} \boxed{ - 7 = - 7}[/tex]
Espero te sirva :)