saja pusing pala ni.bantu!!

Dik : 15 kg kopi & 45 kg gula = 937.500
5 kg kopi & 30 kg gula = 500.000
Dit : pers matriks?
Jwb :
Kopi = x, gula = y
( 15 45 ) (x) = (937.500 )
( 5 30 ) (y) = (500.000)