SOLUTION: Arnold's dog weighs 10 pounds less than twice his brother's dog. The dogs' combined weight is 50 pounds.

Algebra ->  Equations -> SOLUTION: Arnold's dog weighs 10 pounds less than twice his brother's dog. The dogs' combined weight is 50 pounds.      Log On


   

Question 528699: Arnold's dog weighs 10 pounds less than twice his brother's dog. The dogs' combined weight is 50 pounds.
Answer by boilpoil(127) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be Arnold's dog's weight
Then 2x-10 be his brother's dog's weight
x+2x-10=50
3x=60
x=20(pounds)
His brother's dog's weight:
2(20)-10
=40-10
=30(pounds)