Question 562104
2=2y-x

x=2y-2

23=5y-4x

substitute x in second equation

23=5y-4x
23=5y-4(2y-2)
23=5y-8y+8
23=-3y+8
-3y=23-8
y=-5

plug y in equation to get x
x=2y-2
x=-10-2
x=-12