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Which bound on real x follows from 4x + 7 ≥ 2x - 5?

Ax ≤ -6
Bx ≥ 6
Cx > -6
Dx ≥ -6
Answer & Solution
Correct answer: D. x ≥ -6
Collecting terms gives 2x ≥ -12 and hence x ≥ -6.
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