Posted by zach on Monday, September 14, 2009 at 7:11am.
A magician has 3 more red hats than black hats and 4 fewer purple hats than black hats and has 14 hatsin all. How many hats of each color does he have. Show how you got the answer.

math  drwls, Monday, September 14, 2009 at 7:28am
You can get the answer by using algebra or by guessing the number of black and seeing what works.
Perhaps you are not learning algebra yet.
If I guess there are 5 black hats, then there are 8 red ones and 1 purple one. The sum is 14. So that's the answer. 
math  Dr Russ, Monday, September 14, 2009 at 7:30am
B+3=R
B4=P
B+P+R=14
substitute for P and R
(B)+(B4)+(B+3)=14
3B1=14
solve from here