Homework Help: Math

Posted by Anonymous on Wednesday, April 4, 2012 at 9:07pm.

Andy has 21 watches. He has twice as many watches with black bands than with gold bands. How many gold band watches does Andy have?

Math - Ms. Sue, Wednesday, April 4, 2012 at 9:12pm
x + 2x = 21

3x = 21

x = 7

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