Question

Which of the following is in the solution set of the inequality x + 13 < 9?

A 22
B. -22
C. 4
D. -4

Answer 1

Explanation:

x + 13 < 9

x < - 4

(B). - 22

Answer 2

Answer: B.x = -22

x + 13 < 9

⇔ x < 9 - 13

⇔ x < -4

=> x ∈ {-∞; -4}

=> x = -22

Explanation: