Question

Помогите Пожалуйста с решением

Answer 1

$(4 frac{2}{7} y-1 frac{1}{6})*84=82 \ \ 4 frac{2}{7} y-1 frac{1}{6}= frac{82}{84} \ \ 4 frac{2}{7} y-1 frac{1}{6}= frac{41}{42} \ \ 4 frac{2}{7} y=1 frac{1}{6}^{(7}+ frac{41}{42} \ \ 4 frac{2}{7} y=1 frac{7}{42}+ frac{41}{42} \ \ 4 frac{2}{7} y=1 frac{48}{42} \ \ 4 frac{2}{7} y=2frac{6}{42} \ \ 4 frac{2}{7} y=2 frac{1}{7}$
$y=2 frac{1}{7}:4 frac{2}{7} \ \ y= frac{15}{7}: frac{30}{7} \ \ y= frac{15}{7}*frac{7}{30} \ \ y= frac{1}{2} \ \ y=0,5$