9(x/2)=81 - solution

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Solution for 9(x/2)=81 equation:

x in (-oo:+oo)

9*(x/2) = 81 // - 81

9*(x/2)-81 = 0

9/2*x-81 = 0 // + 81

9/2*x = 81 // : 9/2

x = 81/9/2

x = 18

x = 18

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