X/2-3=-9 - solution

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Solution for X/2-3=-9 equation:

X in (-oo:+oo)

X/2-3 = -9 // + 9

X/2-3+9 = 0

1/2*X+6 = 0 // - 6

1/2*X = -6 // : 1/2

X = -6/1/2

X = -12

X = -12

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