Question

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Answer 1

Respuesta:

Explicación paso a paso:

⇒$\frac{1}{3}\left(x+\frac{1}{2}\right)=\frac{7}{30}$

$3\cdot \frac{1}{3}\left(x+\frac{1}{2}\right)=\frac{7\cdot \:3}{30}$

$x+\frac{1}{2}=\frac{21}{30}$

Simplificamos:

$x+\frac{1}{2}=\frac{7}{10}$

$x=\frac{7}{10}-\frac{1}{2}$

$x= \frac{14-10}{20}$

$x= \frac{4}{20}$

Simplificar:

$x=\frac{1}{5}$

⇒$\frac{3}{8}\left(\frac{1}{3}x-\frac{5}{2}\right)=-1$

$8\cdot \frac{3}{8}\left(\frac{1}{3}x-\frac{5}{2}\right)=8\left(-1\right)$

Simplificamos:

$x-\frac{15}{2}=-8$

$x=-8+\frac{15}{2}$

$x= \frac{-16+15}{2}$

$x= -\frac{1}{2}$

⇒$-\frac{2}{5}\left(x+1\right)=\frac{4}{5}-1$

$=\frac{4}{5}-1$ →→ $=\frac{4-5}{5}$ →→$=-\frac{1}{5}$

Seguimos:

$-\frac{2}{5}\left(x+1\right)=-\frac{1}{5}$

$5(-\frac{2}{5}\left(x+1\right))=5(-\frac{1}{5})$

Simplifico:

$-2\left(x+1\right)=-1$

$-2x-2= -1$

$-2x= -1+2$

$-2x= 1$

$x= -\frac{1}{2}$