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Jawaban -7 (B) semoga membantu :)Bab SPLDV
2p + 5q = 7 → dikali 3.. → 6p + 15q = 21
3p - 2q = -18 → dikali 2 → 6p - 4q = -36
6p + 15q = 21
6p - 4q = -36
------------------- -
19q = 57
q = 57/19
q = 3
2p + 5q = 7
2p + 5 . 3 = 7
2p = 7 - 15
p = -8/2
p = -4
4p + 3q
= 4 . (-4) + 3 . 3
= -16 + 9
= -7