Question

2x-1 x
------ + ----- = 7
2 3

Answer 1

Nu iese, da x=45/8, ai gresit iar cerinta.
$\frac{2x-1}{2} + \frac{x}{3} =7$, amplificam odata cu3,2 si 6 sa ajungem la acelasi numitor, => $\frac{6x-3}{6}$ + $\frac{2x}{6}$ = $\frac{42}{6}$. =>$\frac{8x-3}{6} = \frac{42}{6}$ => 8x-3=42 => 8x=45 => x= $\frac{45}{8}$=5.625. Pentru cultura ta generala :). yoandrey17.