SOLUTION: Mary is 5 years less than twice of age of Paul. The sum of Mary and Paul age is 19. How old are they?

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Question 977032: Mary is 5 years less than twice of age of Paul. The sum of Mary and Paul age is 19. How old are they?
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
My single variable method -
Paul is X yrs old
Mary is 2X-5
X+2X-5=19
3X=24
X=8
Paul is 8, Mary is 11