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+ = 1
+ =
=
2p + q = 7
q = 7 - 2p
Dari persamaan kedua, bisa didapatkan:
- = 2
- =
- =
3p - 28 + 8p = 27
11 p = 27 + 28
p = 55 : 11
p = 5
Kembali ke persamaan sebelumnya:
q = 7 - 2p
q = 7 - (2 x 5)
q = 7 - 10
q = -3