Решение:
$$ \frac{5}{6} $$х - $$ \frac{5}{6} $$ = $$ \frac{9}{4} $$ - $$ \frac{11}{8} $$
$$ \frac{5}{6} $$х - $$ \frac{5}{6} $$ = $$ \frac{18}{8} $$ - $$ \frac{11}{8} $$
$$ \frac{5}{6} $$х - $$ \frac{5}{6} $$ = $$ \frac{7}{8} $$
$$ \frac{5}{6} $$х = $$ \frac{7}{8} $$ + $$ \frac{5}{6} $$
$$ \frac{5}{6} $$х = $$ \frac{21}{24} $$ + $$ \frac{20}{24} $$
$$ \frac{5}{6} $$х = $$ \frac{41}{24} $$
х = $$ \frac{41}{24} $$ : $$ \frac{5}{6} $$
х = $$ \frac{41}{24} $$ * $$ \frac{6}{5} $$
х = $$ \frac{41}{20} $$
х = 2 $$ \frac{1}{20} $$