The equations are as follows
S + C = 55 (1) (the sum of ages)
S - C = 3 (2) (the difference of ages, assuming that Mr. Santos is older than Ms. Cruz)
Solved, answered and explained.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website! The sum of the ages of Mr. Santos and Ms. Cruz is 55. The difference is 3. Write a system of equations.
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S + C = 55
S - C = 3
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Or,
C + S = 55
C - S = 3
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Who is older was not specified.
Either way, one is 29, the other is 26.