Y^2-18D+81=0

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Solution for Y^2-18D+81=0 equation: 


Simplifying
Y2 + -18D + 81 = 0

Reorder the terms:
81 + -18D + Y2 = 0

Solving
81 + -18D + Y2 = 0

Solving for variable 'D'.

Move all terms containing D to the left, all other terms to the right.

Add '-81' to each side of the equation.
81 + -18D + -81 + Y2 = 0 + -81

Reorder the terms:
81 + -81 + -18D + Y2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -18D + Y2 = 0 + -81
-18D + Y2 = 0 + -81

Combine like terms: 0 + -81 = -81
-18D + Y2 = -81

Add '-1Y2' to each side of the equation.
-18D + Y2 + -1Y2 = -81 + -1Y2

Combine like terms: Y2 + -1Y2 = 0
-18D + 0 = -81 + -1Y2
-18D = -81 + -1Y2

Divide each side by '-18'.
D = 4.5 + 0.05555555556Y2

Simplifying
D = 4.5 + 0.05555555556Y2

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