SOLUTION: John is seven years younger than his sister Ann. The sum of their ages is 45. Find john's age

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Question 1067233: John is seven years younger than his sister Ann. The sum of their ages is 45. Find john's age
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
J=x
A=x+7
x+x+7=45
2x+7=45
2x=38
x=19
John is 19.