4(n-9)-(3-n)=

Solution for 4(n-9)-(3-n)= equation:

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

Reorder the terms:
4(-9 + n) + -1(3 + -1n) = 0
(-9 * 4 + n * 4) + -1(3 + -1n) = 0
(-36 + 4n) + -1(3 + -1n) = 0
-36 + 4n + (3 * -1 + -1n * -1) = 0
-36 + 4n + (-3 + 1n) = 0

Reorder the terms:
-36 + -3 + 4n + 1n = 0

Combine like terms: -36 + -3 = -39
-39 + 4n + 1n = 0

Combine like terms: 4n + 1n = 5n
-39 + 5n = 0

Solving
-39 + 5n = 0

Solving for variable 'n'.

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

Add '39' to each side of the equation.
-39 + 39 + 5n = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 5n = 0 + 39
5n = 0 + 39

Combine like terms: 0 + 39 = 39
5n = 39

Divide each side by '5'.
n = 7.8

Simplifying
n = 7.8