Question

x upon y is equals to 4 upon y find value of 4 x + y upon 4 x - y​

Answer 1

$\sf we \: have \\ \boxed{ \sf \frac{x}{y} = \frac{4}{y}}$

$\sf \: To \: Find \leadsto$

$\boxed { \sf \frac{4x + y}{4x - y}}$

$\sf \: Solution \leadsto$

$\frac{x}{y} = \frac{4}{y} \\ \boxed{ \sf x = 4}$

Now

$\sf \frac{4x + y}{4x - y} = \frac{4(4) + + y }{4(4) - y} \\ = \frac{16 + y}{16 - y}$