Question

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

Answer 1

use gauss-jordan elimination

Answer 2

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

Answer 3

then i multiplied the first one by 5 then the second by 3 to get
25x-15y=45
-21x+15y=45

Answer 4

that works

Answer 5

add both equations together to get a solution for x

4x = 90

x = 45


then you can find y.

Answer 6

when i divided 90 by 4 i got 22.5...