Question

a) x-y pe y =3 pe 4
b)2x+y pe y=73 pe 15

Answer 1

Inmultesti pe diagonala si egalezi:


$\frac{x-y}{y} = \frac{3}{4} =\ \textgreater \ 4x=7y$

$\frac{2x+y}{y}= \frac{73}{15} =\ \textgreater \ 30x=58y$

Answer 2

\frac{x-y}{y} = \frac{3}{4} =\ \textgreater \ 4x=7y \frac{2x+y}{y}= \frac{73}{15} =\ \textgreater \ 30x=58y