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soal 2, x=14
soal 3, x= 6
7x-2x = 4+6
5x = 10
x = 2
HP = 2
5x-3 = 4x+11
5x-4x = 11+3
x = 14
HP = 14
3x-5 = x+7
3x-x = 7+5
2x = 12
x = 6
HP = 6