Предмет: Математика, автор: lolilop2016

решите уравнение: 4-5(3х+2,5)=3х+9,5

Ответы

Автор ответа: QX55

0

4-5(3х+2,5)=3х+9,54-15x-12.5=3x+9.5
18x=4-12.5-9.5
18x=-18
x=-1

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