X/-2-1=12 - solution

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Solution for X/-2-1=12 equation:

X in (-oo:+oo)

X/(-2)-1 = 12 // - 12

X/(-2)-12-1 = 0

-1/2*X-13 = 0 // + 13

-1/2*X = 13 // : -1/2

X = 13/(-1/2)

X = -26

X = -26

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