Предмет: Математика, автор: 22AlinA22

при каком значении переменной сумма выражений 3y-4 и 5+y равна 9
помогите срочно

Ответы

Автор ответа: asha6
0
5+у=9 у=9-5 у=4 проверяем 5+4=9
Автор ответа: денис878
0
вот
(3у-4)+(5+у)=9
3у+у+1=9
4у=8
у=2
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