3(12+3n)+2(-2n-1)=

Solution for 3(12+3n)+2(-2n-1)= equation:

Simplifying
3(12 + 3n) + 2(-2n + -1) = 0
(12 * 3 + 3n * 3) + 2(-2n + -1) = 0
(36 + 9n) + 2(-2n + -1) = 0

Reorder the terms:
36 + 9n + 2(-1 + -2n) = 0
36 + 9n + (-1 * 2 + -2n * 2) = 0
36 + 9n + (-2 + -4n) = 0

Reorder the terms:
36 + -2 + 9n + -4n = 0

Combine like terms: 36 + -2 = 34
34 + 9n + -4n = 0

Combine like terms: 9n + -4n = 5n
34 + 5n = 0

Solving
34 + 5n = 0

Solving for variable 'n'.

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

Add '-34' to each side of the equation.
34 + -34 + 5n = 0 + -34

Combine like terms: 34 + -34 = 0
0 + 5n = 0 + -34
5n = 0 + -34

Combine like terms: 0 + -34 = -34
5n = -34

Divide each side by '5'.
n = -6.8

Simplifying
n = -6.8