-x^2+9=18

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Solution for -x^2+9=18 equation:


Simplifying
-1x2 + 9 = 18

Reorder the terms:
9 + -1x2 = 18

Solving
9 + -1x2 = 18

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -1x2 = 18 + -9

Combine like terms: 9 + -9 = 0
0 + -1x2 = 18 + -9
-1x2 = 18 + -9

Combine like terms: 18 + -9 = 9
-1x2 = 9

Divide each side by '-1'.
x2 = -9

Simplifying
x2 = -9

Reorder the terms:
9 + x2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + x2 = 0

The solution to this equation could not be determined.

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