Question

пожалуйста помогите СРОЧНО

Answer 1

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