6x+15y=-456x+5y=-35
6x+15y=-456x+5y=-35subtract second equation from the first6x+15y=-456x+5y=-35- - + 10y = -10⇒ y = (-10/10) = 1put value of y in one of the equation,6x+5y = -35⇒ 6x + 5(-1) = -35⇒ 6x - 5 =-35⇒ 6x = -35 + 5 = 30⇒ x = 30/6⇒ x = 5So x=5 and y=-1.