5 4x 2 1 7x 3 July 8, 2019 16 32 64 128 3x 5 2 4x 5 3 7x 1 6 7x 5 3 4x 1 2 0 4x 5 7x 2 3x 6 )- 1 5 x 7 = 35 5x - 7 = 2 - 4x 7-3x =1-5x
