Pets in ZOO

The zoo have run for pets. They are chickens, pigs and cow. Altogether there has 20 heads and 60 feet. How many chickens and piglets are there?


x =  10
y =  9


x+y+1 = 20

x+y = 19
2x+4y = 56

x = 10
y = 9

Calculated by our linear equations calculator.

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