Răspuns:
Explicație pas cu pas:
2x + 8 ≥ 0
2x ≥ - 8
x ≥ -8: 2
x ≥ -4
x = -4; -3; -2 ,....
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-2x + 4 < 0
2x > 4
x > 4 : 2
x > 2
x = 3; 4; 5; ....
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-8x - 40 ≤ 0
8x ≥ 40
x ≥ 40 : 8
x ≥ 5
x = 5; 6; 7;....
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-2x + 3 > 3
2x < 3 - 3
2x < 0
x < 0
x = -1; -2; -3; .....
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3x - 7 ≤ -x + 1
3x + x ≤ 1 + 7
4x ≤ 8
x ≤ 8 : 4
x ≤ 2
x = 2; 1; 0; -1; -2; ....
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-2x + 1 ≥ -3x - x
-2x + 1 ≥ - 4x
4x - 2x ≥ -1
2x ≥ -1
x ≥ -1/2
x = 0; 1; 2; ....
