N/3-7-12 - solution

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Solution for N/3-7-12 equation:

N in (-oo:+oo)

N/3-7 > -12 // + 12

N/3-7+12 > 0

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

1/3*N > -5 // : 1/3

N > -5/1/3

N > -15

N in (-15:+oo)

(-15:+oo)

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