Solve the following systems by graphing. 1) 2x + y = 5 and x - 3y = - 8 2) 6x - 3y = - 9 and 2x + 2y = -6 Solve the following systems by substitution 3) y = 5x - 3 and -x - 5y = - 11 4) 2x - 6y = - 24 and x 5y - 22 Solve the following systems by elimination 5) - 4x - 2y = -2 and 4x + 8y = - 24 - 6) x - y = 11 and 2x + y = 19​