we have a fraction with the unknown in the denominator, review how to treat unknowns in the denominator as a refresher for this exercise: (2/3) - (1/x + 6) = 2 (2/3) - (1 + 6x)/x = 2 (2/3) - 2 = (1 + 6x)/x 2/3 - 6/3 = (1 + 6x)/x -4/3 = (1 + 6x)/x -4x = 3(1 + 6x) -4x = 3 + 18x 22x = -3 x = -3/22
