72=6r^2

Solution for 72=6r^2 equation:

Simplifying
72 = 6r2

Solving
72 = 6r2

Solving for variable 'r'.

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

Add '-6r2' to each side of the equation.
72 + -6r2 = 6r2 + -6r2

Combine like terms: 6r2 + -6r2 = 0
72 + -6r2 = 0

Add '-72' to each side of the equation.
72 + -72 + -6r2 = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -6r2 = 0 + -72
-6r2 = 0 + -72

Combine like terms: 0 + -72 = -72
-6r2 = -72

Divide each side by '-6'.
r2 = 12

Simplifying
r2 = 12

Take the square root of each side:
r = {-3.464101615, 3.464101615}