1) 6 - x ≥ 0
3x - 9 ≥ 0
x ≤ 6
x ≥ 3
x ∈ [3; 6]
2) 2x + 2 ≥ 0
6 - 4x ≥ 0
x ≥ -1
x ≤ 1,5
x ∈ [-1; 1,5]
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1) 6 - x ≥ 0
3x - 9 ≥ 0
x ≤ 6
x ≥ 3
x ∈ [3; 6]
2) 2x + 2 ≥ 0
6 - 4x ≥ 0
x ≥ -1
x ≤ 1,5
x ∈ [-1; 1,5]