-1/2x=-9 - solution

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Solution for -1/2x=-9 equation:

x in (-oo:+oo)

(-1/2)*x = -9 // + 9

(-1/2)*x+9 = 0

9-1/2*x = 0 // - 9

-1/2*x = -9 // : -1/2

x = -9/(-1/2)

x = 18

x = 18

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