Problema Solution

Weight Loss:31 After losing 30 pounds, an individual weighs 110 pounds more than one-third his previous weight. Find the previous weight of the individual.

Answer provided by our tutors

Let W = the individual's weight, then you can write:

 Multiply through by 3 to clear the fraction.

 Subtract W from both sides.

 Add 90 to both sides.

 Finally, divide both sides by 2.


 

The individual previously weighed 210 lbs.