Предмет: Математика, автор: дима770073

6y-20=2(5y-10)=-4 помогите

BJIADA: там точно ...=-4?

Ответы

Автор ответа: BJIADA
0
6y-20=2(5y-10)-4
6y-20=10y-20-4
6y-10y=-24+20
-4y=-4
y=1


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