90-x^2=y

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Solution for 90-x^2=y equation:


Simplifying
90 + -1x2 = y

Solving
90 + -1x2 = y

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + -1x2 = -90 + y

Combine like terms: 90 + -90 = 0
0 + -1x2 = -90 + y
-1x2 = -90 + y

Divide each side by '-1'.
x2 = 90 + -1y

Simplifying
x2 = 90 + -1y

Reorder the terms:
-90 + x2 + y = 90 + -1y + -90 + y

Reorder the terms:
-90 + x2 + y = 90 + -90 + -1y + y

Combine like terms: 90 + -90 = 0
-90 + x2 + y = 0 + -1y + y
-90 + x2 + y = -1y + y

Combine like terms: -1y + y = 0
-90 + x2 + y = 0

The solution to this equation could not be determined.

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