(r-3)2=

Solution for (r-3)2= equation:

Simplifying
(r + -3) * 2 = 0

Reorder the terms:
(-3 + r) * 2 = 0

Reorder the terms for easier multiplication:
2(-3 + r) = 0
(-3 * 2 + r * 2) = 0
(-6 + 2r) = 0

Solving
-6 + 2r = 0

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + 2r = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 2r = 0 + 6
2r = 0 + 6

Combine like terms: 0 + 6 = 6
2r = 6

Divide each side by '2'.
r = 3

Simplifying
r = 3