5x 2y 12 3x 2y 4 July 8, 2019 16 32 64 128 5x 2y 12 3x 4y 2 3x 2y 12 5x 2y 4 substitution method 3x 2y 12 5x 2y 4 elimination method 3x 2y 12 5x 2y 4 solve graphically Solve 3x 2y 12 5x 2y 4
