SOLUTION: If you add the age of a man to the age of his wife, the result is 91. He is now twice as old as she was when he was as old as she is now.

Question 936686: If you add the age of a man to the age of his wife, the result is 91. He is now twice as old as she was when he was as old as she is now.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = man age now
y = woman age now
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x + y = 91
x = 2(y - (x - y))
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put the system of linear equations into standard form
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x + y = 91
x = 2y - 2x + 2y
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x + y = 91
3x - 4y = 0
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = man age now = 52
y = woman age now = 39
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