D. (5,-4)
you can eliminate the 5x and -5x because they are opposites
Then you add the two equations together
you get -9y = 36
solve for y and you get -4
plug -4 into one of the original equations
Ex. 5x+3 (-4)=13
Solve for x
you get 5x = 25
then you finish solving and get x=5