# pre cal

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a+1 a-1 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.

• pre cal -

If you mean

(a+1)/b = (a-1)/b + (b+1)/a
((a+1)-(a-1))/b = (b+1)/a
2/b = (b+1)/a
2a = (b+1)/b
a = (b+1)/(2b)

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