Предмет: Алгебра, автор: emmilinaP

ПОМОГИТЕ ПОЖАЛУЙСТАААА!!!!!!

упростите выражение (-15x-3,5y)+(19y+7,5x)=...x+...y

Ответы

Автор ответа: varamogutova2

0

Ответ:

-7.5х+22.5у

Объяснение:

(-15х-3.5у)+(19у+7.5х)

раскрываем скобки: -15х-3.5у+19у+7.5х

подобные: -15х+7.5х= -7.5х ; -3.5у+19у=22.5

(-15х-3.5у)+(19у+7.5х) = -15х-3.5у+19у+7.5х = -7.5х+22.5у

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