6x 7 5 4x 1 )- 16 July 8, 2019 16 32 64 128 6) 4(x + 1) - 7x = 5 6) 4(x + 1) - 7x = 16 4 5x-1 4≤7 6 6x - 7 5 5) 1 5x -2=4 6) 7 - 6x = - 5
