(-7n+6)+(5n+15)=

Solution for (-7n+6)+(5n+15)= equation:

Simplifying
(-7n + 6) + (5n + 15) = 0

Reorder the terms:
(6 + -7n) + (5n + 15) = 0

Remove parenthesis around (6 + -7n)
6 + -7n + (5n + 15) = 0

Reorder the terms:
6 + -7n + (15 + 5n) = 0

Remove parenthesis around (15 + 5n)
6 + -7n + 15 + 5n = 0

Reorder the terms:
6 + 15 + -7n + 5n = 0

Combine like terms: 6 + 15 = 21
21 + -7n + 5n = 0

Combine like terms: -7n + 5n = -2n
21 + -2n = 0

Solving
21 + -2n = 0

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + -2n = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -2n = 0 + -21
-2n = 0 + -21

Combine like terms: 0 + -21 = -21
-2n = -21

Divide each side by '-2'.
n = 10.5

Simplifying
n = 10.5