7-3r^2=-107

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Solution for 7-3r^2=-107 equation: 


Simplifying
7 + -3r2 = -107

Solving
7 + -3r2 = -107

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + -3r2 = -107 + -7

Combine like terms: 7 + -7 = 0
0 + -3r2 = -107 + -7
-3r2 = -107 + -7

Combine like terms: -107 + -7 = -114
-3r2 = -114

Divide each side by '-3'.
r2 = 38

Simplifying
r2 = 38

Take the square root of each side:
r = {-6.164414003, 6.164414003}

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