1/ 5,2x + 5,2 . $\frac{3}{52}$ = 30%
5,2 . (x + $\frac{3}{52}$) = $\frac{30}{100}$
$\frac{52}{10}$ . (x + $\frac{3}{52}$) = $\frac{3}{10}$
x + $\frac{3}{52}$ = $\frac{3}{10}$ : $\frac{52}{10}$
x + $\frac{3}{52}$ = $\frac{3}{10}$ . $\frac{10}{52}$
x + $\frac{3}{52}$ = $\frac{3}{52}$
x = $\frac{3}{52}$ - $\frac{3}{52}$
x = 0
2/ (x - $\frac{5}{12}$) : $\frac{29}{9}$ = $\frac{-6}{29}$
x - $\frac{5}{12}$ = $\frac{-6}{29}$ . $\frac{29}{9}$
x - $\frac{5}{12}$ = $\frac{-2}{3}$
x = $\frac{-2}{3}$ + $\frac{5}{12}$
x = $\frac{-8}{12}$ + $\frac{5}{12}$
x = $\frac{-1}{4}$.
