SOLUTION: 1/b + 1/(b - 4) = (b -3)/(b - 4)

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Question 864874: 1/b + 1/(b - 4) = (b -3)/(b - 4)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
1%2Fb+%2B+1%2F%28b+-+4%29+=+%28b+-3%29%2F%28b+-+4%29
multiply equation by b(b-4)
%28b-4%29%2Bb=b%28b-3%29

b-4%2Bb=b%5E2-3b
2b-4=b^2-3b
b^2-5b+4=0
b^2-4b-b+4=0
b(b-4)-1(b-4)=0
(b-1)(b-4)=0
b=1