3v^2-243=0

Solution for 3v^2-243=0 equation:

Simplifying
3v2 + -243 = 0

Reorder the terms:
-243 + 3v2 = 0

Solving
-243 + 3v2 = 0

Solving for variable 'v'.

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

Add '243' to each side of the equation.
-243 + 243 + 3v2 = 0 + 243

Combine like terms: -243 + 243 = 0
0 + 3v2 = 0 + 243
3v2 = 0 + 243

Combine like terms: 0 + 243 = 243
3v2 = 243

Divide each side by '3'.
v2 = 81

Simplifying
v2 = 81

Take the square root of each side:
v = {-9, 9}