What value of x is in the solution set of the inequality 4x – 12 ≤ 16 + 8x?

Subtract 4x from both sides: −12 ≤ 16 + 4x. Subtract 16, then divide by 4 to get −7 ≤ x, so any value at least −7 is in the solution set. The choice −7 is the boundary value and satisfies the inequality.

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