Предмет: Математика, автор: darinasheleshuk

10х -2(4х-5)=22х+40 СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ответы

Автор ответа: iramazurk

Пошаговое объяснение:

10х - 2(4х - 5) = 22х + 40

10х - 8х + 10 = 22х + 40

10х - 8х - 22х = 40 - 10

-20х = 30

х = 30 : (-20)

х = -30/20

х = -3/2

х = -1. 1/2

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