8-7n+4n=-1

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Solution for 8-7n+4n=-1 equation: 


n in (-oo:+oo)

4*n-(7*n)+8 = -1 // + 1

4*n-(7*n)+1+8 = 0

4*n-7*n+1+8 = 0

9-3*n = 0 // - 9

-3*n = -9 // : -3

n = -9/(-3)

n = 3

n = 3

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