Предмет: Математика, автор: nobbu7776

2X+7(2-X)=-7X+5(3+2X)
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Ответы

Автор ответа: russia666999

1

Ответ:

Пошаговое объяснение:

2х+14=15+10х

2х-10х=15-14

-8х=1

х=-1/8

Автор ответа: cooolery

1

Ответ:

-0.125

Пошаговое объяснение:

$2x+7(2-x)=-7x+5(3+2x)\\2x+14-7x=-7x+15+10x\\-5x+14=3x+15\\-5x-3x=15-14\\-8x=1\\x=1:(-8)\\x=-0.125$

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