9r^2+3=147

Solution for 9r^2+3=147 equation:

Simplifying
9r2 + 3 = 147

Reorder the terms:
3 + 9r2 = 147

Solving
3 + 9r2 = 147

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + 9r2 = 147 + -3

Combine like terms: 3 + -3 = 0
0 + 9r2 = 147 + -3
9r2 = 147 + -3

Combine like terms: 147 + -3 = 144
9r2 = 144

Divide each side by '9'.
r2 = 16

Simplifying
r2 = 16

Take the square root of each side:
r = {-4, 4}