5 8x 7 12x 5 6x 1 4 July 8, 2019 16 32 64 128 - 8 4 - 7 5x = 12 5x + 11 6 5 x + 1 8 = 7 x + 6 ( 3 x − 7 ) 1 5 · (6x + 8) = 12x − 3 (5x - 1) *1 6=1 8x-4 7
