Răspuns :
Fie x si y cat mananca intr-o zi o oaie , respectiv un cal
y=4x
2y+24x=960
8x+24x=960
30x=960
x=960:30
x=32
y=4x
y=4·32
y=128
y=4x
2y+24x=960
8x+24x=960
30x=960
x=960:30
x=32
y=4x
y=4·32
y=128