7/2-x=18/2 - solution

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Solution for 7/2-x=18/2 equation:

x in (-oo:+oo)

7/2-x = 18/2 // - 18/2

7/2-x-(18/2) = 0

7/2-x-9 = 0

-x-11/2 = 0 // + 11/2

-x = 11/2 // * -1

x = -11/2

x = -11/2

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