Oblicz wartość bezwzględną:
||x-1| - 3 | ≥ 4
||x-2| - 4 | < 2
x+1-3≥4
x≥4-1+3
x≥7
x+2-4<2
x<2+4-2
x<4
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x+1-3≥4
x≥4-1+3
x≥7
x+2-4<2
x<2+4-2
x<4