15=-3n+5n-3

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Solution for 15=-3n+5n-3 equation: 


n in (-oo:+oo)

15 = 5*n-3*n-3 // - 5*n-3*n-3

3-(-3*n)-(5*n)+15 = 0

3*n-5*n+3+15 = 0

18-2*n = 0 // - 18

-2*n = -18 // : -2

n = -18/(-2)

n = 9

n = 9

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