уравнение: 37/76-(69/76-x)=15/76 это дроби / 5/18+(15/18-(x-7/18))=11/18 пожки(( очень...

$\frac{37}{76}-(\frac{69}{76}-x)=\frac{15}{76}$

$-\frac{69}{76}+x=\frac{15}{76}- \frac{37}{76}$

$-\frac{69}{76}+x=- \frac{22}{76}$

$x=\frac{69}{76}- \frac{22}{76}$

$x= \frac{47}{76}$

$\frac{5}{18}+(\frac{15}{18}-(x-\frac{7}{18})) =\frac{11}{18}$

$\frac{15}{18}-(x-\frac{7}{18}) =\frac{11}{18}- \frac{5}{18}$

$-x+\frac{22}{18} =\frac{6}{18}$

$x =\frac{22}{18} -\frac{6}{18}$

$x =\frac{16}{18}$

$x =\frac{8}{9}$