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Verified answer
Bab PertidaksamaanMatematika SMP Kelas VIII
2/5y ≥ 3
(2/5y) - 3 ≥ 0
(2/5y) - 15y/5y
(2 - 15y)/15y ≥ 0
(2 - 5y) . 15y ≥ 0
2 - 5y ≥ 0
-5y ≥ -2
y ≤ -2/-5
y ≤ 2/5
15y > 0
y > 0
0 < y
HP = { y | 0 < y ≤ 2/5, y ∈ bilangan real }