X^2/7=x

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Solution for X^2/7=x equation: 


x in (-oo:+oo)

(X^2)/7 = x // - x

(X^2)/7-x = 0

1/7*X^2-x = 0 // - 1/7*X^2

-x = -(1/7*X^2) // * -1

x = 1/7*X^2

x = 1/7*X^2

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