Question

ДАЮ 40 БАЛЛОВ

ПОМОГИТЕ ПЖ

3/4 : X + 4.5 = 2.4

Answer 1

Ответ: -5/14

$\frac{3}{4} \div x + 4.5 = 2.4 \\ \frac{3}{4} \div x = 2.4 - 4.5 \\ \frac{3}{4} \div x = - 2.1 \\ x = \frac{3}{4} \div ( - 2.1) = \frac{3}{4} \div ( - \frac{21}{10} ) = \frac{3}{4} \times ( - \frac{10}{21} ) = - \frac{5}{14}$

Answer 2

$\frac{3}{4} \div x + 4.5 = 2.4 \\ \frac{3}{4} \div x = 2.4 - 4.5 \\ \frac{3}{4} \div x = - 2.1 \\ x = \frac{3}{4} \div (- 2.1) \\ x = \frac{3}{4} \div(- 2 \frac{1}{10}) \\ x = \frac{3}{4} \div (-\frac{21}{10}) \\ x = \frac{3}{4} \: × \: (-\frac{10}{21} ) \\ x = - \frac{5}{14}$