Answer:
The solution set is {x : x ∈ R, x < -7} ⇒ A
Step-by-step explanation:
- The solution set of the inequality x > a is {x : x ∈ R, x > a}
- The solution set of the inequality x < a is {x : x ∈ R, x < a}
- The solution set of the inequality x ≥ a is {x : x ∈ R, x ≥ a}
- The solution set of the inequality x ≤ a is {x : x ∈ R, x ≤ a}
Let us solve the question
∵ x + 2 < -5
→ Subtract 2 from both sides of the inequality
∴ x + 2 - 2 < -5 - 2
∴ x + 0 < -7
∴ x < -7
→ By using the second rule above
∴ The solution set is {x : x ∈ R, x < -7}
