(A+6)+(B+6)=C+6

Solution for (A+6)+(B+6)=C+6 equation:

Simplifying
(A + 6) + (B + 6) = C + 6

Reorder the terms:
(6 + A) + (B + 6) = C + 6

Remove parenthesis around (6 + A)
6 + A + (B + 6) = C + 6

Reorder the terms:
6 + A + (6 + B) = C + 6

Remove parenthesis around (6 + B)
6 + A + 6 + B = C + 6

Reorder the terms:
6 + 6 + A + B = C + 6

Combine like terms: 6 + 6 = 12
12 + A + B = C + 6

Reorder the terms:
12 + A + B = 6 + C

Solving
12 + A + B = 6 + C

Solving for variable 'A'.

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

Add '-12' to each side of the equation.
12 + A + -12 + B = 6 + -12 + C

Reorder the terms:
12 + -12 + A + B = 6 + -12 + C

Combine like terms: 12 + -12 = 0
0 + A + B = 6 + -12 + C
A + B = 6 + -12 + C

Combine like terms: 6 + -12 = -6
A + B = -6 + C

Add '-1B' to each side of the equation.
A + B + -1B = -6 + -1B + C

Combine like terms: B + -1B = 0
A + 0 = -6 + -1B + C
A = -6 + -1B + C

Simplifying
A = -6 + -1B + C