(21/2)n=2x/8y

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Solution for (21/2)n=2x/8y equation: 


x in (-oo:+oo)

(21/2)*n = ((2*x)/8)*y // - ((2*x)/8)*y

(21/2)*n-(((2*x)/8)*y) = 0

(21/2)*n+(-1/4)*x*y = 0

21/2*n-1/4*x*y = 0 // - 21/2*n

-1/4*x*y = -(21/2*n) // : -1/4*y

x = (-(21/2*n))/(-1/4*y)

x = 42*n*y^-1

x = 42*n*y^-1

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