Apolonia ma 7 razy tyle dwuzłotówek, co pięciozłotówek. W sumie ma 323 zł. Ile ma dwuzłotówek, a ile pięciozłotówek.
x- ilosc piecoozlotowek
y- ilosc dwuzlotowek
2y+5x=323
y=7x
14x+5x=323
19x=323
x=17
2y=323-5*17=238
y=119
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x- ilosc piecoozlotowek
y- ilosc dwuzlotowek
2y+5x=323
y=7x
14x+5x=323
19x=323
x=17
2y=323-5*17=238
y=119