-5 ≤ x v 8
5 ≤ x ≤ 8
-8 ≤ x ≤ 5
-5 < x ≤ 8
Correct answer is C
To solve -11 ≤ 4 - 3x ≤ 28
-11 ≤ 4 - 3x also 4 -3x ≤ 28
15 ≤ -3x ≤ 24 = 15 ≥ 3x - 3x ≥ -24
-5 ≥ x, x ≥ -8
i.e. x ≤ 5
∴ -8 ≤ x ≤ 5
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