Question about SoftMath Algebrator - Algebra Homework Solver (689076614429)

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1/(x+5) + 7/(22x+20) = (x+13)/(22x+20)

Solve for x.
step by step, please and thank you.

1/(x+5) + 7/(22x+20) = (x+13)/(22x+20)

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Multiply throughout by (x+5)(22x+20)
(22x+20)+7(x+5)=(x+13)(x+5)
29x+25=x²+18x+65
x²-11x+40=0
x=[11±?11²-4×1×40]/2
x=[11±?-39]/2

Posted on Jun 24, 2009

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