108=r(27)

Solution for 108=r(27) equation:

Simplifying
108 = r(27)

Reorder the terms for easier multiplication:
108 = 27r

Solving
108 = 27r

Solving for variable 'r'.

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

Add '-27r' to each side of the equation.
108 + -27r = 27r + -27r

Combine like terms: 27r + -27r = 0
108 + -27r = 0

Add '-108' to each side of the equation.
108 + -108 + -27r = 0 + -108

Combine like terms: 108 + -108 = 0
0 + -27r = 0 + -108
-27r = 0 + -108

Combine like terms: 0 + -108 = -108
-27r = -108

Divide each side by '-27'.
r = 4

Simplifying
r = 4