im not sure how to solve problem 1, need a lil help.

solve the following:

1)

1/x + 1/y = 1/19

x/y = 12

2)solve the variable v

3 = 25x + 5v

xv = v + x

im not sure if im doing 2 right, but i times the 1st equation by (v) and 2nd equation by (25). so got:

-25xv - 5v^2 +3x = 0

25xv -25v -25x = 0

so:

-5v^2 -22v -25x=0, if thats right do i use the quadratic equation to solve for v? if not please explain.