pre cal
posted by Danielle .
a+1 a1 B+1
_________ = _______ + _________
B B a
Solve for A.
Note: I set up problems with underlines so they can look like fractions. That's what they are.

If you mean
(a+1)/b = (a1)/b + (b+1)/a
((a+1)(a1))/b = (b+1)/a
2/b = (b+1)/a
2a = (b+1)/b
a = (b+1)/(2b)
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