-9-5r^2=-94

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Solution for -9-5r^2=-94 equation: 


Simplifying
-9 + -5r2 = -94

Solving
-9 + -5r2 = -94

Solving for variable 'r'.

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

Add '9' to each side of the equation.
-9 + 9 + -5r2 = -94 + 9

Combine like terms: -9 + 9 = 0
0 + -5r2 = -94 + 9
-5r2 = -94 + 9

Combine like terms: -94 + 9 = -85
-5r2 = -85

Divide each side by '-5'.
r2 = 17

Simplifying
r2 = 17

Take the square root of each side:
r = {-4.123105626, 4.123105626}

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