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a) |x+4| ≤ 7
x ≤ 7-4
x ≤ 3
b) |5-x| > 0
5 - x > 0
-x > 0-5
-x > -5
x > 5
c) 2-|x+5|≥ 0
2-x-5≥ 0
-x≥ 0+5-2
-x≥ 5-2
-x≥ 3
x≤-3
a)
| x + 4 | ≤ 7
x + 4 ≤ 7
x ≤ 7-4
x ≤ 3
b)
| 5 - x | > 0
5 - x > 0
- x > 0 -5
-x > -5 / : (-1)
x < 5
c)
2 - | x+5| ≥ 0
2 - x + 5 ≥ 0
-x ≥ 0-2-5
-x ≥ -7 / : (-1)
x ≤ 7