SOLUTION: If Peter's age plus Paul's age = 34
and Peter's age plus Mary's age =42
and Paul's age plus Mary's age =24
How old are Peter, Paul and Mary
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-> SOLUTION: If Peter's age plus Paul's age = 34
and Peter's age plus Mary's age =42
and Paul's age plus Mary's age =24
How old are Peter, Paul and Mary
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Question 941633: If Peter's age plus Paul's age = 34
and Peter's age plus Mary's age =42
and Paul's age plus Mary's age =24
How old are Peter, Paul and Mary Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = age of Peter
y = age of Paul
z = age of Mary
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x + y = 34
x + z = 42
y + z = 24
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put the system of linear equations into standard form
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2x + 2y = 70
x - 2y = 8
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solution:
x = 26
y = 8
z = 16
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