А)Пусть х=-1/3 и у=0,5.Найдите значение каждого из...

Решите задачу:

$-(-(- \frac{1}{3}) + \frac{1}{2})=-( \frac{1}{3} + \frac{1}{2})=- \frac{5}{6} \\\ -(- \frac{1}{3}-\frac{1}{2})= \frac{5}{6} \\\ -(-(- \frac{1}{3}) + \frac{1}{2})=-( \frac{1}{3} + \frac{1}{2})=- \frac{5}{6} \\\ -(-(- \frac{1}{3})-\frac{1}{2})=-( \frac{1}{3}-\frac{1}{2})=\frac{1}{6}$

$2- \frac{- \frac{2}{3} }{2} =2+\frac{1}{3} =2\frac{1}{3} \\\ 2+ \frac{- \frac{2}{3}}{- \frac{2}{3}} =2+1=3 \\\ \frac{2}{2} - \frac{2}{3}=1- \frac{2}{3}= \frac{1}{3} \\\ \frac{- \frac{2}{3}}{2} -(- \frac{2}{3})= - \frac{1}{3} + \frac{2}{3}= \frac{1}{3}$