Answer:
(x,y) = (4, 10)
Step-by-step explanation:
-5y + 8x = -18
5y +2x =58
Adding both equations
-5y + 8x = -18
5y + 2x = 58
0 + 10x = 40
10x/10 = 40 / 10
x = 4
putting x= 4 in equation 1
-5y + 8x = -18
-5y + 8(4) = -18
-5y + 32 = -18
-5y = -18 -32
-5y = -50
-5y/-5 = -50/-5
y= 10
