2 9x 4 7 6 5x 3 18 July 8, 2019 16 32 64 128 2 ⋅ ( 7 + 9 x ) = − 6 x + 2 2) 5 6x - 2 4x = 4 8 3) 9x - 7 9/20 * x = 4 3