SOLUTION: Help pls. It's confusing. Karla weighs 42 lbs more than mara. Their combined weight is 68lbs. less than three times Mara's weight. How much does Karla weigh?

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Question 205936: Help pls. It's confusing.
Karla weighs 42 lbs more than mara. Their combined weight is 68lbs. less than three times Mara's weight. How much does Karla weigh?

Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
mara=x=110
karla=x+42=152
total=3x-68
--------------
x+(x+42)=3x-68
2x+42=3x-68
-x=-110
x=110

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