Y-x^2=-9x+21

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Solution for Y-x^2=-9x+21 equation: 


Simplifying
Y + -1x2 = -9x + 21

Reorder the terms:
Y + -1x2 = 21 + -9x

Solving
Y + -1x2 = 21 + -9x

Solving for variable 'Y'.

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

Add 'x2' to each side of the equation.
Y + -1x2 + x2 = 21 + -9x + x2

Combine like terms: -1x2 + x2 = 0
Y + 0 = 21 + -9x + x2
Y = 21 + -9x + x2

Simplifying
Y = 21 + -9x + x2

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