Question

[Nguyễn Thị Hồng Yên]

Tìm y thỏa mãn

\(1\frac{1}{3}\)+ \(1\frac{1}{5}\)x y - \(\frac{4}{5}\)= \(2\frac{4}{5}\)

Answer 1

[bui hong duyen]

=11/3+11/5 x y-4/5=24/5

=20/3 x y-4/5=24/4

=20/3+4/5 x y=24/5

=100/12 x y=24/4

y=24/4:100/12

y=1/2

Answer 2

[ngo nguyen thanh cong]

\(2\frac{8}{15}y-\frac{4}{5}=2\frac{4}{5}\)

           \(2\frac{8}{15}y=2\frac{4}{5}+\frac{4}{5}\)

            \(2\frac{8}{15}y=3\frac{3}{5}\)

                     \(y=3\frac{3}{5}:2\frac{8}{15}\)

                     \(y=1\frac{8}{19}\)