x-strusie
y-kangury
układ równań
x+y=55
2x+4y=184
x=55-y
2(55-y)+4y=184
110-2y+4y=184
2y=74
y=37
x=55-37
x=18
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x-strusie
y-kangury
układ równań
x+y=55
2x+4y=184
x=55-y
2(55-y)+4y=184
110-2y+4y=184
2y=74
y=37
x=55-37
x=18