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Verified answer
Bab Nilai MutlakMatematika SMA Kelas X
|x/2 + 5| ≥ 9
x/2 + 5 ≥ 9
x/2 ≥ 9 - 5
x/2 ≥ 4
x ≥ 4 . 2
x ≥ 8
x/2 + 5 ≤ -9
x/2 ≤ -9 - 5
x/2 ≤ -14
x ≤ -28
HP = { x | x ≤ -28 atau x ≥ 8, x ∈ bilangan real }