12=-6(c+1)

Solution for 12=-6(c+1) equation:

Simplifying
12 = -6(c + 1)

Reorder the terms:
12 = -6(1 + c)
12 = (1 * -6 + c * -6)
12 = (-6 + -6c)

Solving
12 = -6 + -6c

Solving for variable 'c'.

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

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

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

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

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

Combine like terms: -6 + -12 = -18
6c = -18

Divide each side by '6'.
c = -3

Simplifying
c = -3