Question

х+1 2/5х=3 5/7 решите пожалуйста

Answer 1

$x + 1 frac{2}{5} x = 3 frac{5}{7} \ 2 frac{2}{5} x = 3 frac{5}{7} \ x = 3 frac{5}{7} div 2 frac{2}{5} = frac{26}{7} div frac{12}{5} \ = frac{26}{7} times frac{5}{12} = frac{65}{42} = 1 frac{23}{42}$