Question

Cum se rezolva ecuatia in Q+ daca: 2pe 3× parenteza 1+3 -7xpupra 2inchiden paranteza=x dau 49 de puncte

Answer 1

$\frac{2}{3}*(1+3- \frac{7}{2})=x$
$\frac{2}{3}*(4- \frac{7}{2})=x$
$\frac{2}{3}* \frac{1}{2}=x$
$\frac{1}{3}=x$
$x=\frac{1}{3}$