Question

помогите решить уровнения ​

Answer 1

$\frac{ \frac{1}{4} }{ \frac{3}{4} x - \frac{1}{2} } + \frac{2}{5} = \frac{1}{2} \: \: \: \: \: | \: x \ne \frac{2}{3} \\ \frac{ \frac{1}{4} }{ \frac{3x - 2}{4} } + \frac{2}{5} = \frac{1}{2} \\ \frac{1}{3x - 2} + \frac{2}{5} = \frac{1}{2} \\ \frac{1}{3x - 2} = \frac{1}{2} - \frac{2}{5} \\ \frac{1}{3x - 2} = \frac{1}{10} \\ 3x - 2 = 10 \\ 3x = 10 + 2 \\ 3x = 12 \\ x = 12 \div 3 \\ \underline{ \bold{x = 4}}$