Question

Solve for x and y:
5/4x-3/4y=9/4
5/3y-7/3x=15/3

Answer 1

i got to 5x-3y=9 and -7x+5y=15

Answer 2

Okay, so we can use elimination:
This one is gonna be interesting though.

If we multiply equation 1 by 4 and equation 2 by 3, then we get rid of the denominators.
5x-3y=9
-7x+5y=15

as you have...

next we multiply equation 1 by 5 and equation 2 by 3.
25x-15y=45
-21x+15y=45
4x=90
x=90/4

Now plug in x into one of the equations and solve for y.
Hope this helps.

http://www.tutorsean.net
Follow me on Facebook: Tutor Sean.