Предмет: Математика, автор: sabovnekov2004

36 умножить (5a плюс19) равно 30a плюс 1134

Ответы

Автор ответа: MrLyanda

36*(5a+19)=30a+1134
180a+684=30a+1134
150a=1134-684
150a=450
a=450/150
a=3

sabovnekov2004: спасибо!!!

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