(3+6n)+(2n+3)=

Solution for (3+6n)+(2n+3)= equation:

Simplifying
(3 + 6n) + (2n + 3) = 0

Remove parenthesis around (3 + 6n)
3 + 6n + (2n + 3) = 0

Reorder the terms:
3 + 6n + (3 + 2n) = 0

Remove parenthesis around (3 + 2n)
3 + 6n + 3 + 2n = 0

Reorder the terms:
3 + 3 + 6n + 2n = 0

Combine like terms: 3 + 3 = 6
6 + 6n + 2n = 0

Combine like terms: 6n + 2n = 8n
6 + 8n = 0

Solving
6 + 8n = 0

Solving for variable 'n'.

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

Add '-6' to each side of the equation.
6 + -6 + 8n = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 8n = 0 + -6
8n = 0 + -6

Combine like terms: 0 + -6 = -6
8n = -6

Divide each side by '8'.
n = -0.75

Simplifying
n = -0.75