SOLUTION: if a pig weighs 20 lbs heavier then a 1/3 of its weight how much does the pig weigh

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Question 163646: if a pig weighs 20 lbs heavier then a 1/3 of its weight how much does the pig weigh
Answer by gonzo(654) About Me  (Show Source):
You can put this solution on YOUR website!
let w = weight of the pig.
if the pig weighs 20 pounds more than 1/3 of its weight, then
w = 1/3w + 20
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multiply both sides of equation by 3 to get
3w = w + 60
subtract w from both sides of equation to get
2w = 60
divide both sides of equation by 2 to get
w = 30
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pig weights 20 pounds more than 1/3 of its weight.
1/3 of its weight is 10.
20 pounds more than that is 30.
pig weighs 30 pounds.