2x - 5y=0

5x - y = - 23

x=-5

y=-2

Step-by-step explanation:

-5 (2x - 5y=0) " - 10x+25y=0

2 (5x - y = - 23) " 10x-2y=-46

= 23y = - 46

divide 23 on both sides to get y=-2

then plug in - 2 for y " 2x-5 (-2) = 0

multiply - 5 and - 2 to get 2x+10=0 then subtract 10 to get 2x=-10 finally divide both sides by 2 to get x=-5