6A+6+1(7A+-1)=0

Solution for 6A+6+1(7A+-1)=0 equation:

Simplifying
6A + 6 + 1(7A + -1) = 0

Reorder the terms:
6A + 6 + 1(-1 + 7A) = 0
6A + 6 + (-1 * 1 + 7A * 1) = 0
6A + 6 + (-1 + 7A) = 0

Reorder the terms:
6 + -1 + 6A + 7A = 0

Combine like terms: 6 + -1 = 5
5 + 6A + 7A = 0

Combine like terms: 6A + 7A = 13A
5 + 13A = 0

Solving
5 + 13A = 0

Solving for variable 'A'.

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

Add '-5' to each side of the equation.
5 + -5 + 13A = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 13A = 0 + -5
13A = 0 + -5

Combine like terms: 0 + -5 = -5
13A = -5

Divide each side by '13'.
A = -0.3846153846

Simplifying
A = -0.3846153846