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1/3x - 1/5y = -5
Eliminasi y
x = 3
2/3 × 3 + 1/5y = 8
1/5y = 8 - 2
1/5y = 6
y = 30
2p + q
= 2(3) + 30
= 6 + 36
= 42
Tidak ada pada pilihan jawaban