SOLUTION: help solve the following I am having great difficulty:

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Question 90449: help solve the following I am having great difficulty:

Answer by malakumar_kos@yahoo.com(315) About Me  (Show Source):
You can put this solution on YOUR website!

A= 1/2H (B+b)(for b)
2A = H(B+b)
2A/H = B+b
2A/H-B = b
b = 2A/H-B is the required solution