-3n+7-n=-13

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Solution for -3n+7-n=-13 equation: 


n in (-oo:+oo)

7-3*n-n = -13 // + 13

7-3*n-n+13 = 0

20-4*n = 0 // - 20

-4*n = -20 // : -4

n = -20/(-4)

n = 5

n = 5

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