8
Answer: CSet 1: Linear Inequalities (Advanced)
Explanation
PROBLEM
Solve: 3x - 9 < 2x + 1 OR x > 15. Which is always a solution?
Solve: 3x - 9 < 2x + 1 OR x > 15. Which is always a solution?
A.
10
B.
8
C.✓ Correct
20
D.
5
Detailed Explanation
Choice C is the best answer. x < 10 OR x > 15. 20 satisfies x > 15
Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.