19/21-x=1/2 - solution

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Solution for 19/21-x=1/2 equation:

x in (-oo:+oo)

19/21-x = 1/2 // - 1/2

19/21-x-(1/2) = 0

19/21-x-1/2 = 0

17/42-x = 0 // - 17/42

-x = -17/42 // * -1

x = 17/42

x = 17/42

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