3x 3 5x 10 7 July 8, 2019 16 32 64 128 3x 3 5x 7x 10 5x 3x 4y 10 5x 7y 3 7x 3 3x 7 3 5x 10 3x 2 4x 1 3 5x 10 2 7 5 x 7 = 35 3 x-5=x+3