document.write( "Question 573959: How do I solve for n? C(n, 5) = C(n, 7) \n" ); document.write( "

Algebra.Com's Answer #368982 by richard1234(7193) $\"\"$ $\"About$

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Use the identity that C(n, k) = C(n, n-k). Here, we can let k = 5, n - k = 7. From here we get n - 5 = 7, n = 12. \n" ); document.write( "

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