Question

plzz answer step by step​

Answer 1

Step-by-step explanation:

$\frac{12}{x} + \frac{15}{y} = 7 \\ \frac{12y + 15x}{xy} = 7 \\ 15x + 12y = 7xy$

And

$\frac{6}{x} + \frac{20}{y} = 6 \\ 20x + 6y = 6xy$

Multiply second equation by 2

40x+12y=12xy

Now solve the equation

40x+12y = 12xy

15x+12y=7xy

Subtract them