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olah pers pada ruas kiri sehingga similar dgn pers ruas kanan
samakan pd ruas kanan
bagian penyebut sudah sama.
bagian pembilang
(2p-q) +(p+q)x = 2x
sehingga
(2p-q) + (p+q) x = 0 + 2x
2p-q = 0 dan p+q = 2
eliminasi :
2p-q =0
p+q = 2
--------------- +
3p = 2
p = 2/3
dan 2/3 + q = 2
q = 2 - 2/3
= 4/3
sehingga p =2/3 dan q = 4/3