Question

Решите этот пример нужно очень быстро​

Answer 1

$\frac{8}{7x} = \frac{24}{35} \\ x = \frac{8 \times 35}{24 \times 7} \\ x = \frac{5}{3} \\ x = 1 \frac{2}{3}$

$\frac{18}{52} = 2x \\ x = \frac{18}{52} \div 2 \\ x = \frac{18}{52 \times 2} \\ x = \frac{ 9}{52}$

$\frac{25}{44 } = \frac{15}{4x} \\ x = \frac{44 \times 15}{25 \times 4} \\ x = \frac{11 \times 3}{5} \\ x = \frac{33}{5} \\ x = 6 \frac{3}{5} \\ x = 6.6$

$\frac{3}{2x - 1} = \frac{1}{4} \\ 2x - 1 = 3 \times 4 \\ 2x - 1 = 12 \\ 2x = 12 + 1 \\ 2x = 13 \\ x = 13 \div 2 \\ x = 6 \frac{1}{2} \\ x = 6.5$

$\frac{9}{2} = \frac{x + 3}{4} \\ x + 3 = \frac{9 \times 4}{2} \\ x + 3 = 18 \\ x = 18 - 3 \\ x = 15$

$1 \frac{1}{5} x \div 1 \frac{1}{3} = 5 \frac{1}{4} \div 2 \frac{1}{3} \\ \frac{1 \frac{1}{5} x}{1 \frac{1}{3} } = \frac{5 \frac{1}{4} }{2 \frac{1}{3} } \\ x = \frac{1 \frac{1}{3} \times 5 \frac{1}{4} }{2 \frac{1}{3} \times 1 \frac{1}{5} } \\ x = \frac{4 \times 21 \times 3 \times 5}{3 \times 4 \times 7 \times 6} \\ x = \frac{5}{2} \\ x = 2 \frac{1}{2} \\ x = 2.5$