Предмет: Математика, автор: darcome

решите уравнения 2(5-3x)=6-5x 2(1-x)-4(2x+8)=8x+28

Ответы

Автор ответа: gazorru

1)2(5-3x)=6-5x
10-6x=6-5x
-6x+5x=6-10
-x=-4
x=4
2)2(1-х)-4(2х+8)=8х+28
2-2х-8х-32=8х+28
-2х-8х-8х=28+32-2
-18х=58
х=-3 2/9,проверь второе уравнение,не ошибся ли ты ,когда переписывал?

Автор ответа: darcome

a vtorope??

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