mariahoffmannagu mariahoffmannagu 26-03-2021 Mathematics contestada 4x + 10y= -40 -5x + 3y= -40 6x – 5y= - 20 9x + 2y= 35 x + 5y= -14 2x + 4y= -30 8x + 6y = - 10 - x - 3y= 20