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5p+2p+3p = 90+10
10p = 100
p = 100 = 10
10
<BOC = 2p-10
= 2(10)-10
= 20-10 = 10
<COD = 3p
= 3(10) = 30
maaf nomer 3nya saya tidak mengerti karena terdapat 2 variabel
diukur pake busur derajad