Respuesta :
x-5y=45 when x=5
(5)-5y=45
5-5y=45
(subtract 5 from both sides)
-5y=40
(divide each side by -5)
y=-8
(5)-5y=45
5-5y=45
(subtract 5 from both sides)
-5y=40
(divide each side by -5)
y=-8