⅓ ( x - ½ ) – 5x – 1 / 2 ≤ x - ⅔ (x + 1)

⅓ ( x - ½ ) – 5x – 1 / 2 ≤ x - ⅔ (x + 1) ⅓x-⅙-5x-½≤x-⅔x-⅔ ⅓x-5x-x+⅔x≤-⅔+⅙+½ -5⅔x≤0 x≥0