3a^2-27=0

Solution for 3a^2-27=0 equation:

Simplifying
3a2 + -27 = 0

Reorder the terms:
-27 + 3a2 = 0

Solving
-27 + 3a2 = 0

Solving for variable 'a'.

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

Add '27' to each side of the equation.
-27 + 27 + 3a2 = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 3a2 = 0 + 27
3a2 = 0 + 27

Combine like terms: 0 + 27 = 27
3a2 = 27

Divide each side by '3'.
a2 = 9

Simplifying
a2 = 9

Take the square root of each side:
a = {-3, 3}