27r^2-12=

Solution for 27r^2-12= equation:

Simplifying
27r2 + -12 = 0

Reorder the terms:
-12 + 27r2 = 0

Solving
-12 + 27r2 = 0

Solving for variable 'r'.

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

Add '12' to each side of the equation.
-12 + 12 + 27r2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 27r2 = 0 + 12
27r2 = 0 + 12

Combine like terms: 0 + 12 = 12
27r2 = 12

Divide each side by '27'.
r2 = 0.4444444444

Simplifying
r2 = 0.4444444444

Take the square root of each side:
r = {-0.666666667, 0.666666667}