Предмет: Математика, автор: 28108283

если задуманное число умножить на 12 и произведение уменьшить на 39, то получим 141.Какое число задумали?

Ответы

Автор ответа: sanka3d

x*12-39=141
x*12=141+39
x*12=180
x=180^12
x=15

проверка-15*12-39=141

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