(4/7-x)^1/2=1/7

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Solution for (4/7-x)^1/2=1/7 equation: 


x in (-oo:+oo)

((4/7-x)^1)/2 = 1/7 // - 1/7

((4/7-x)^1)/2-(1/7) = 0

(4/7-x)/2-1/7 = 0

(7*(4/7-x))/(2*7)+(-1*2)/(2*7) = 0

7*(4/7-x)-1*2 = 0

2-7*x = 0

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

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

2-7*x = 0

2-7*x = 0 // - 2

-7*x = -2 // : -7

x = -2/(-7)

x = 2/7

x = 2/7

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