Penjelasan dengan langkah-langkah:
3b + 2p = 6.900 |× 5| 15b + 10p = 34.500
5b + p = 8.700 |× 3| 15b+ 3p = 26.100
————————— -
7p = 8.400
p = 1.200
5b + 1.200 = 8.700
5b = 8.700 - 1200
5b = 7.500
b = 7.500:5
b = 1.500
4(1.500)+5(1.200) = 6.000+6.000 = Rp. 12.000,00
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Penjelasan dengan langkah-langkah:
3b + 2p = 6.900 |× 5| 15b + 10p = 34.500
5b + p = 8.700 |× 3| 15b+ 3p = 26.100
————————— -
7p = 8.400
p = 1.200
5b + 1.200 = 8.700
5b = 8.700 - 1200
5b = 7.500
b = 7.500:5
b = 1.500
4(1.500)+5(1.200) = 6.000+6.000 = Rp. 12.000,00