N/3-7=-2 - solution

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Solution for N/3-7=-2 equation:

N in (-oo:+oo)

N/3-7 = -2 // + 2

N/3-7+2 = 0

1/3*N-5 = 0 // + 5

1/3*N = 5 // : 1/3

N = 5/1/3

N = 15

N = 15

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