Question

3/x+4/y=18 and 5/x+6/y=28 then x+y=​

Answer 1

Step-by-step explanation:

$\frac{3}{x} + \frac{4}{y} = 18$

4x+3y=18xy eq1

From second equation we get

6x+5y=28xy

Subtracting

2x+2y= 10xy

4x+4y= 20xy

Subtracting eq1 we get x=1/2

y=-3