3(r+2)=15r

Solution for 3(r+2)=15r equation:

Simplifying
3(r + 2) = 15r

Reorder the terms:
3(2 + r) = 15r
(2 * 3 + r * 3) = 15r
(6 + 3r) = 15r

Solving
6 + 3r = 15r

Solving for variable 'r'.

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

Add '-15r' to each side of the equation.
6 + 3r + -15r = 15r + -15r

Combine like terms: 3r + -15r = -12r
6 + -12r = 15r + -15r

Combine like terms: 15r + -15r = 0
6 + -12r = 0

Add '-6' to each side of the equation.
6 + -6 + -12r = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -12r = 0 + -6
-12r = 0 + -6

Combine like terms: 0 + -6 = -6
-12r = -6

Divide each side by '-12'.
r = 0.5

Simplifying
r = 0.5