Предмет: Математика, автор: Kotolapa99

Помогите решить уравнение : 31-(y+9)=15

Ответы

Автор ответа: Flash3146

0

31-(y+9)=15
31-y-9=15
-y=15-22
-y=-7:(-1)
y=7

Автор ответа: svetka1574

0

31-(у+9) =15
31-у-9 =15
22-у = 15
у=22-15
у=7
31-(7+9) =15
15=15

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