Предмет: Математика, автор: mahmudovafiruza9738

Реши уравнение (54:Х +30)+2= 72

Ответы

Автор ответа: turkmenistan225

$(54 \div x + 30) + 2 = 72 \\ ( \frac{54}{x} + 30) + 2 = 72 \\ \frac{54}{x} + 30 + 2 = 72 \\ \frac{54}{x} + 32 = 72 \\ \frac{54}{x} = 72 - 32 \\ \frac{54}{x} = 40 \\ 54 = 40x \\ 40x = 54 \\ x = \frac{27}{20} \\ x = \frac{27}{20}$

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