9=3(r+2)

Solution for 9=3(r+2) equation:

Simplifying
9 = 3(r + 2)

Reorder the terms:
9 = 3(2 + r)
9 = (2 * 3 + r * 3)
9 = (6 + 3r)

Solving
9 = 6 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
9 + -3r = 6 + 3r + -3r

Combine like terms: 3r + -3r = 0
9 + -3r = 6 + 0
9 + -3r = 6

Add '-9' to each side of the equation.
9 + -9 + -3r = 6 + -9

Combine like terms: 9 + -9 = 0
0 + -3r = 6 + -9
-3r = 6 + -9

Combine like terms: 6 + -9 = -3
-3r = -3

Divide each side by '-3'.
r = 1

Simplifying
r = 1