-45=-(1+2n)-6+(4-2n)

Solution for -45=-(1+2n)-6+(4-2n) equation:

Simplifying
-45 = -1(1 + 2n) + -6 + (4 + -2n)
-45 = (1 * -1 + 2n * -1) + -6 + (4 + -2n)
-45 = (-1 + -2n) + -6 + (4 + -2n)

Remove parenthesis around (4 + -2n)
-45 = -1 + -2n + -6 + 4 + -2n

Reorder the terms:
-45 = -1 + -6 + 4 + -2n + -2n

Combine like terms: -1 + -6 = -7
-45 = -7 + 4 + -2n + -2n

Combine like terms: -7 + 4 = -3
-45 = -3 + -2n + -2n

Combine like terms: -2n + -2n = -4n
-45 = -3 + -4n

Solving
-45 = -3 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
-45 + 4n = -3 + -4n + 4n

Combine like terms: -4n + 4n = 0
-45 + 4n = -3 + 0
-45 + 4n = -3

Add '45' to each side of the equation.
-45 + 45 + 4n = -3 + 45

Combine like terms: -45 + 45 = 0
0 + 4n = -3 + 45
4n = -3 + 45

Combine like terms: -3 + 45 = 42
4n = 42

Divide each side by '4'.
n = 10.5

Simplifying
n = 10.5