12r-(r+1)=-1

Solution for 12r-(r+1)=-1 equation:

Simplifying
12r + -1(r + 1) = -1

Reorder the terms:
12r + -1(1 + r) = -1
12r + (1 * -1 + r * -1) = -1
12r + (-1 + -1r) = -1

Reorder the terms:
-1 + 12r + -1r = -1

Combine like terms: 12r + -1r = 11r
-1 + 11r = -1

Add '1' to each side of the equation.
-1 + 1 + 11r = -1 + 1

Combine like terms: -1 + 1 = 0
0 + 11r = -1 + 1
11r = -1 + 1

Combine like terms: -1 + 1 = 0
11r = 0

Solving
11r = 0

Solving for variable 'r'.

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

Divide each side by '11'.
r = 0

Simplifying
r = 0