SOLUTION: Jake is seven years older than Sydney. In eight years this some of their ages will be 49. How old is Jack now?

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Question 1117679: Jake is seven years older than Sydney. In eight years this some of their ages will be 49. How old is Jack now?
Answer by josgarithmetic(39620) About Me  (Show Source):
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Jake is seven years older than Sydney. In eight years cross%28this%29 cross%28some%29 THE SUM of their ages will be 49. How old is Jack now?
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j, Jake's age now, which the question asks


Ages j and j-7

%28j%2B8%29%2B%28j-7%2B8%29=49

2j%2B9=49
2j=40
highlight%28j=20%29