Предмет: Алгебра, автор: Nusyy

Решите уравнение
30-у=2(20-у)

Ответы

Автор ответа: slavinkaaaa

0

30-y=40-2y
-y+2y=40-30
y=10

Nusyy: 2х-3(7-2х)=3 можно это ещё?

slavinkaaaa: 2x-21+6x=3
8x=3+21
8x=24
X=4

slavinkaaaa: X=3****

slavinkaaaa: X=3

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