-3r-6=-r

Solution for -3r-6=-r equation:

Simplifying
-3r + -6 = -1r

Reorder the terms:
-6 + -3r = -1r

Solving
-6 + -3r = -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-6 + -3r + r = -1r + r

Combine like terms: -3r + r = -2r
-6 + -2r = -1r + r

Combine like terms: -1r + r = 0
-6 + -2r = 0

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