Question

resuelve. la siguiente ecuacion de primer grado. 3(2+x)=-6. ​

Answer 1

$\bf \textcolor{green}{3(2 + x) = - 6} \\ \\ \bf \textcolor{turquoise}{6 + 3x = - 6} \\ \\ \bf \textcolor{green}{3x = - 6 - 6} \\ \\ \bf \textcolor{turquoise}{3x = - 12} \\ \\ \bf \textcolor{green}{x = \frac{ - 12}{3} } \\ \\ \boxed {x = - 4} \\ \\ \\ \\ ley \: de \: signos \\ \\ \\ \\ \bf \textcolor{blue}{ + \times - = - } \\ \bf \textcolor{red}{ - \times - = + } \\ \bf \textcolor{red}{ + \times + = + } \\ \bf \textcolor{blue}{ - \times + = - }$

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