SOLUTION: Five times Jeff's age plus three times Karen's are equals 92. Karen's age is 4 more than Jeff's age. How old is Karen?
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Question 1167243: Five times Jeff's age plus three times Karen's are equals 92. Karen's age is 4 more than Jeff's age. How old is Karen?
Answer by VFBundy(438) (Show Source): You can put this solution on YOUR website!
Karen's age = k
Jeff's age = j
5j + 3k = 92
k = j + 4
5j + 3k = 92
-j + k = 4
Multiply second equation by 5:
5j + 3k = 92
-5j + 5k = 20
Add both equations together and solve for k:
8k = 112
k = 14
Karen's age = k = 14
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