Уравнение 5 класс
3*(5-х)+13=4*(3х-8)
annmslna2044
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23.06.2020 13:58
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2
3*(5-х)+13=4*(3х-8)
1) 15-3х+13=12х-32
2) 28-3х=12х-32
3) -3х-12х=-32-28
4) -15х=-60
5) х=4
ответ: 4
Пошаговое объяснение:
3*(5-х)+13=4*(3х-8)
15-3x+13=12x-32
15-3x+13-12x+32=0
-15x+60=0
-15x= -60
x=4