9=2n+n+3 - solution

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Solution for 9=2n+n+3 equation:

n in (-oo:+oo)

9 = 2*n+n+3 // - 2*n+n+3

9-(2*n)-n-3 = 0

9-2*n-n-3 = 0

6-3*n = 0 // - 6

-3*n = -6 // : -3

n = -6/(-3)

n = 2

n = 2

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