What is an expression that could be put in place of the question mark of the inequality 7 ≤ ? ≤ 9, so that the inequality would have the same solution set as the inequality -2 ≤ x ≤ 6.
What is an expression that could be put in place of the question mark of the inequality 7 ≤ ? ≤ 9, so that the inequality would have the same solution set as the inequality -2 ≤ x ≤ 6.
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