10
Answer: ASet 3: Linear Inequalities (Advanced)
Explanation
PROBLEM
Solve: 2x + 10 > 6 AND 3x - 9 < 18. What is the solution?
Solve: 2x + 10 > 6 AND 3x - 9 < 18. What is the solution?
A.✓ Correct
-2 < x < 9
B.
x < 9
C.
x > -2
D.
-2 <= x
Detailed Explanation
Choice A is the best answer. x > -2 AND x < 9
Why others are wrong:
B: x < 9 is incorrect because it does not satisfy the equation.
C: x > -2 is incorrect because it does not satisfy the equation.
D: -2 <= x is incorrect because it does not satisfy the equation.
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