-72=-6r

Solution for -72=-6r equation:

Simplifying
-72 = -6r

Solving
-72 = -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
-72 + 6r = -6r + 6r

Combine like terms: -6r + 6r = 0
-72 + 6r = 0

Add '72' to each side of the equation.
-72 + 72 + 6r = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 6r = 0 + 72
6r = 0 + 72

Combine like terms: 0 + 72 = 72
6r = 72

Divide each side by '6'.
r = 12

Simplifying
r = 12