x^2/7=w+y

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Solution for x^2/7=w+y equation: 


x in (-oo:+oo)

(x^2)/7 = w+y // - w+y

(x^2)/7-w-y = 0

1/7*x^2 = -(-w-y) // : 1/7

x^2 = 7*(w+y)

x^2 = 7*(w+y) // ^ 1/2

abs(x) = 7^(1/2)*(w+y)^(1/2)

x = 7^(1/2)*(w+y)^(1/2) or x = -(7^(1/2)*(w+y)^(1/2))

x in { 7^(1/2)*(w+y)^(1/2), -(7^(1/2)*(w+y)^(1/2)) }

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