9-x=31/2

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Solution for 9-x=31/2 equation: 


x in (-oo:+oo)

9-x = 31/2 // - 31/2

9-x-(31/2) = 0

9-x-31/2 = 0

-x-13/2 = 0 // + 13/2

-x = 13/2 // * -1

x = -13/2

x = -13/2

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