Помогите пожалуйста дам 17 баллов

$2) \frac{ \frac{5}{7} }{ \frac{6}{7}x+ \frac{3}{7} } - \frac{1}{2} = \frac{1}{6}$

$\frac{5}{6x+3}=\frac{1}{6}+ \frac{1}{2}$

$\frac{5}{6x+3} = \frac{2}{3}$

$15=2(6x+3)$

$15=12x+6$

$-12x=6-15$

$-12x=-9$

$x= \frac{3}{4} ;x=0,75$
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$3) \frac{ \frac{3}{4} }{ \frac{5}{8}x- \frac{1}{2} }- \frac{1}{8}= \frac{1}{4}$

$\frac{6}{5x-4}- \frac{1}{8} = \frac{1}{4}$

$\frac{6}{5x-4}= \frac{1}{4} + \frac{1}{8}$

$\frac{6}{5x-4}= \frac{3}{8}$

$48=3(5x-4)$

$16=5x-4$

$-5x=-4-16$

$-5x=-20$

$x=4$