SOLUTION: what is the length of ab with the perimeter of 21 and the equation is x+4+x+x+5=21

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Question 1006028: what is the length of ab with the perimeter of 21 and the equation is x+4+x+x+5=21
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
I saw this problem earlier but did not answer because it is not clear what ab is...if ab is a side of the triangle, it isn't clear what kind of triangle it is...please resubmit and someone will help you...