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7 + 11 > 5p - 2p
18 > 3p
6 > p
2p-5p > -11-7
-3p > -18
p < -18/-3 ⇒ tanda dibalik karena dibagi -3
p < 6
Himpunan penyelesaian = {pl p <6, p E bilangan bulat} = {1,2,3,4,5}