Answer:
in -5y+8x=-18 and 5y+2x=58
x = 4
in -5y+8x=-18 and 5y+2x=58
y = 10
Answer:
if this is a simultaneous equation;
Step-by-step explanation:
-5y+8x=-18 [1]
5y+2x=58 [2]
solve for5y
-5y+8x=-18
5y=58-2x [4]
-[58-2x]+8x=-18
x=4
substitute x=4 into equation 4
5y=58-2*4
x=4and y=10
