700=3.13r^2

Solution for 700=3.13r^2 equation:

Simplifying
700 = 3.13r2

Solving
700 = 3.13r2

Solving for variable 'r'.

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

Add '-3.13r2' to each side of the equation.
700 + -3.13r2 = 3.13r2 + -3.13r2

Combine like terms: 3.13r2 + -3.13r2 = 0.00
700 + -3.13r2 = 0.00

Add '-700' to each side of the equation.
700 + -700 + -3.13r2 = 0.00 + -700

Combine like terms: 700 + -700 = 0
0 + -3.13r2 = 0.00 + -700
-3.13r2 = 0.00 + -700

Combine like terms: 0.00 + -700 = -700
-3.13r2 = -700

Divide each side by '-3.13'.
r2 = 223.6421725

Simplifying
r2 = 223.6421725

Take the square root of each side:
r = {-14.954670591, 14.954670591}