Algebra 2

How would I reduce the equation
7n=n-5n(n+4)

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asked by Jane
  1. 7n = n - 5n^2 - 20n
    5n^2 + 26n = 0
    n(5n + 26) = 0
    n = 0 or n = -26/5

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    posted by Reiny

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