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4.) 2x + 6 ≥ 4x
2x + 6 - 6 ≥ 4x - 6
2x - 4x ≥ 4x - 6 - 4x
-2x ≥ - 6
-x ≥ - 6 ÷ 2
-x ≥ - 4 x (- 1)
x ≤ 4
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