1+n+n=-3 - solution

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Solution for 1+n+n=-3 equation:

n in (-oo:+oo)

n+n+1 = -3 // + 3

n+n+1+3 = 0

2*n+4 = 0 // - 4

2*n = -4 // : 2

n = -4/2

n = -2

n = -2

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