3(n-9)-(1-n)=

Solution for 3(n-9)-(1-n)= equation:

Simplifying
3(n + -9) + -1(1 + -1n) = 0

Reorder the terms:
3(-9 + n) + -1(1 + -1n) = 0
(-9 * 3 + n * 3) + -1(1 + -1n) = 0
(-27 + 3n) + -1(1 + -1n) = 0
-27 + 3n + (1 * -1 + -1n * -1) = 0
-27 + 3n + (-1 + 1n) = 0

Reorder the terms:
-27 + -1 + 3n + 1n = 0

Combine like terms: -27 + -1 = -28
-28 + 3n + 1n = 0

Combine like terms: 3n + 1n = 4n
-28 + 4n = 0

Solving
-28 + 4n = 0

Solving for variable 'n'.

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

Add '28' to each side of the equation.
-28 + 28 + 4n = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 4n = 0 + 28
4n = 0 + 28

Combine like terms: 0 + 28 = 28
4n = 28

Divide each side by '4'.
n = 7

Simplifying
n = 7