5x - 1 ≥ 2x + 5
5x - 2x ≥ 5 + 1
3x ≥ 6
x ≥ 2
Ответ : x ∈ [2 ; + ∞)
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5x - 1 ≥ 2x + 5
5x - 2x ≥ 5 + 1
3x ≥ 6
x ≥ 2
Ответ : x ∈ [2 ; + ∞)