#### Solve : ≤ x ∈ R and represent the solution set on the number line.

**Solution:**

≤

⇒ 8x – 20 ≤ 15x – 21

(L.C.M. of 3, 2 = 6)

#### Solve > 1, x ∈ R and represent the solution set on the number line.

**Solution:**

> 1

⇒ 9x – (10x – 5) > 15

⇒ 9x – 10x + 5 > 15

⇒ – x > 15 – 5

⇒ – x > 10

⇒ x < – 10

x ∈ R.

.’. Solution set = {x : x ∈R, x < – 10}

Solution set on the number line