Question 519669
You should have gotten y = -3/4


Once you have y, you can use it to find x



x=5y+3 



x=5(-3/4)+3 



x=-15/4+3 



x=-15/4+12/4 



x=(-15+12)/4



x=-3/4



So the solutions are x = -3/4 and y = -3/4