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35>7x+14
21>7x
x<3
panjang
5x+9
=5(3)+9
=15+9
=24
5(2)+9
=19
5(1)+9
=14
lebar
2x+5
=2(3)+5
=6+5
=11
2(2)+5
=9
2(1)+5
=7
jadi hp
panjang {14,19,24}
lebar{7,9,11}