Question

СРОЧНО решите уравнения

Answer 1

$y - frac{7}{12} = 3 frac{1}{2} times ( - frac{4}{7} ) \ y - frac{7}{12} = - 3 times frac{2}{7} \ y - frac{7}{12} = - frac{6}{7} \ y = - frac{6}{7} + frac{7}{12} \ y = - frac{23}{84} \ \ \ ( - frac{5}{14} ) times frac{21}{25} - y = 3 frac{3}{4} \ - frac{1}{2} times frac{3}{5} - y = frac{9}{4} \ - frac{3}{10} = y - frac{9}{4} \ - y = frac{9}{4} + frac{3}{10} \ - y = frac{51}{20} \ y = - frac{51}{20}$