Question

If – 2x + 1 ≥ 9, then x ______ – 4.

Answer 1

If – 2x + 1 ≥ 9, then x ≤ – 4.

Explanation:

If – 2x + 1 ≥ 9 then

– 2x ≥ 9 – 1

⇒ – 2x ≥ 8

⇒ 2x ≤ – 8

⇒ x ≤ – 4