Given "-11 \\leq 4-3x \\leq 28".
So, "-11 \\leq 4-3x \\implies -11-4\\leq -3x \\implies -15 \\leq -3x \\implies 5 \\geq x" .
And, "4-3x \\leq 28 \\implies -3x\\leq 28-4 \\implies -3x\\leq24 \\implies x \\geq -8" .
Hence, "-8\\leq x\\leq 5 \\implies x\\in[-8,5]."
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