Предмет: Алгебра, автор: alinka0malinka

Выразите a-c и c-a через x и y, если x=a-b, y=b-c. Пожалуйста, напишите побдробнее. ПЛИИИИИИИИИЗ

Ответы

Автор ответа: IıIİıİIıımusic

x=a-b

y=b-c

Сложим наши выражения, получим:

x+y=a-b+b-c

a-c=x+y.
Полученное выражение умножим на (-1) и получим:

c-a=-x-y

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