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2x-3 ≥ 5 lub 2x-3≤ -5
2x≥ 5+3 lub 2x≤ -5+3
x≥ 4 lub x≤ -1
x∈(-∞,-1>u<4,+∞)
2x-3 ≥ 5 v 2x-3≤ -5
2x≥ 5+3 v 2x≤ -5+3
x≥ 4 v x≤ -1
x∈(-∞,-1>u<4,+∞)
2x-3 ≥ 5
2x ≥ 8/ :2
x ≥ 4
v
-(2x-3) ≥ 5
-2x +3 ≥ 5
-2x ≥ 2 /:-2
x≤-2