Given

⇒ 6x – 4 ≤ 20x – 15

⇒ 20x – 15 ≥ 6x – 4

⇒ 20x – 15 + 15 ≥ 6x – 4 + 15

⇒ 20x ≥ 6x + 11

⇒ 20x – 6x ≥ 6x + 11 – 6x

⇒ 14x ≥ 11

Thus, the solution of the given inequation is.