r^2=-18

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Solution for r^2=-18 equation: 


Simplifying
r2 = -18

Solving
r2 = -18

Solving for variable 'r'.

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

Simplifying
r2 = -18

Reorder the terms:
18 + r2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + r2 = 0

The solution to this equation could not be determined.

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