Предмет: Математика, автор: joker111222

Решите уравнение

1) 4a-312=0

2) 25-4y=9-5y

Ответы

Автор ответа: HenryEdwards

0

1) 4a-312=0
4a=312
a=312/4
a=78
2)25-4y=9-5y
-4y+5y=9-25
y=-16

Автор ответа: soleilkc

0

1. Переносим 312 в правую часть. При переносе знак меняется
4а=312
Делим на 4 обе части
а=78

2. Переносим цифры в правую часть, а там где есть буквы - в левую.
5у-4у=9-25
у=-16

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