(5a+6)+(7a-6)=

Solution for (5a+6)+(7a-6)= equation:

Simplifying
(5a + 6) + (7a + -6) = 0

Reorder the terms:
(6 + 5a) + (7a + -6) = 0

Remove parenthesis around (6 + 5a)
6 + 5a + (7a + -6) = 0

Reorder the terms:
6 + 5a + (-6 + 7a) = 0

Remove parenthesis around (-6 + 7a)
6 + 5a + -6 + 7a = 0

Reorder the terms:
6 + -6 + 5a + 7a = 0

Combine like terms: 6 + -6 = 0
0 + 5a + 7a = 0
5a + 7a = 0

Combine like terms: 5a + 7a = 12a
12a = 0

Solving
12a = 0

Solving for variable 'a'.

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

Divide each side by '12'.
a = 0

Simplifying
a = 0