SOLUTION: Jonas is 7 years older than Jeff. Last year Jonas was 12 years old. How old is Jeff now?

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Question 768570: Jonas is 7 years older than Jeff. Last year Jonas was 12 years old. How old is Jeff now?
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
Jonas is 7 years older than Jeff. Last year Jonas was 12 years old. How old is Jeff now?
Let x = Jonas`s age now
Let y = Jeff`s age now
x = y+7
x = 12+1 = 13
Then y = 6
Answer: 6
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