Question

y-5/9y=3.6 Решите плиииииииз

Answer 1

$(y- frac{5}{9} y)=3.6 \ \ frac{4}{9} y=3.6 \ \ y=3.6: frac{4}{9} \ \ y=3.6* frac{9}{4} =0.9*9=8.1$