Question 130463
Found your mistake: you can't go from 3W+13=3W+11 to 3W=24.  Instead, from 3W+13=3W+11, you could subtract 3W from both sides and get 13=11, showing you there is no solution to this equation.  You could also subtract 11 from both sides, giving you 3W+2=3W.  Then subtract 3W from both sides and get 2=0, again showing there is no solution.  Regardless, this equation has no solution.