Hello there!
5y - 4x = -7
2y + 4x = 14
We cancel -4x and 4x
5y + 2y = -7 + 14
7y = 7
y = 7/7
y= 1
Use the second equation to find x
2y + 4x = 14
2(1) + 4x = 14
2 + 4x = 14
4x = 14 - 2
4x = 12
x = 12/4
x = 3
Thus, the answer is x=3 and y=1
As always, I'm glad to be your helper today!