21-x=1/8

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Solution for 21-x=1/8 equation: 


x in (-oo:+oo)

21-x = 1/8 // - 1/8

21-x-(1/8) = 0

21-x-1/8 = 0

167/8-x = 0 // - 167/8

-x = -167/8 // * -1

x = 167/8

x = 167/8

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