Предмет: Алгебра, автор: КатяЛена

решите у-ре 0.8*(x-5)-13=2x+5

Ответы

Автор ответа: triolana

0.8(х-5)-13=2х+5

0,8х-4-13=2х+5

0,8х-2х=4+5+13

-1,2х=22

х=22:(-1,2)

х=-55/3=-18цел1/3

/ это черта дроби

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Текст :

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