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