SOLUTION: Meres cat is three years older than her dog. The sum of her pets' age is 14. How old is her dog?

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Question 745860: Meres cat is three years older than her dog. The sum of her pets' age is 14. How old is her dog?
Answer by savvyhush23(50) About Me  (Show Source):
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Meres cat is three years older than her dog. The sum of her pets' age is 14. How old is her dog?
Let, c - the cat's age and d - the dog's age
cat is three years older than dog: c+=+d%2B3
The sum of her pets' age is 14: c%2Bd=14
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cc+%2B+-1%5Cd+=+3%2C%0D%0A++++1%5Cc+%2B+1%5Cd+=+14+%29%0D%0A++

Any system of equations:


has solution

or



(c=8.5, d=5.5}


Therefore, her dog is 5 and 1/2 years old!