Question

пожалуйста помогите СРОЧНО

Answer 1

$2) \\ \frac{ \frac{5}{6} }{ \frac{1}{4}x - \frac{7}{12} } - \frac{1}{2} = \frac{3}{14} \\ \frac{ \frac{5}{6} }{ \frac{3x - 7}{12} } - \frac{1 }{2} = \frac{3}{14} \\ \frac{10}{3x - 7} = \frac{3}{14} + \frac{1}{2} \\ \frac{10}{3x - 7} = \frac{5}{7} \\ 70 = 5(3x - 7) \\ 14 = 3x - 7 \\ - 3x = - 7 - 14 \\ - 3x = - 21 \\ x = 7 \\ 3) \\ \frac{ \frac{7}{3} }{ \frac{3}{8}x - \frac{5}{6} } + \frac{17}{3} = \frac{55}{6} \\ \frac{ \frac{7}{3} }{ \frac{9x - 20}{24} } + \frac{17}{3} = \frac{55}{6} \\ \frac{56}{9x - 20} + \frac{17}{3} = \frac{55}{6} \\ \frac{56}{9x - 20} = \frac{55}{6} - \frac{17}{3} \\ \frac{56}{9x - 20} = \frac{7}{2} \\ 112 = 7(9x - 20) \\ 16 = 9x - 20 \\ - 9x = - 20 - 16 \\ - 9x = - 36 \\ x = 4$