-5r^2=280

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Solution for -5r^2=280 equation: 


Simplifying
-5r2 = 280

Solving
-5r2 = 280

Solving for variable 'r'.

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

Divide each side by '-5'.
r2 = -56

Simplifying
r2 = -56

Reorder the terms:
56 + r2 = -56 + 56

Combine like terms: -56 + 56 = 0
56 + r2 = 0

The solution to this equation could not be determined.

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