3y=x^2-9+20

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Solution for 3y=x^2-9+20 equation: 


Simplifying
3y = x2 + -9 + 20

Reorder the terms:
3y = -9 + 20 + x2

Combine like terms: -9 + 20 = 11
3y = 11 + x2

Solving
3y = 11 + x2

Solving for variable 'y'.

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

Divide each side by '3'.
y = 3.666666667 + 0.3333333333x2

Simplifying
y = 3.666666667 + 0.3333333333x2

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