3-2(n-1)=4

Solution for 3-2(n-1)=4 equation:

Simplifying
3 + -2(n + -1) = 4

Reorder the terms:
3 + -2(-1 + n) = 4
3 + (-1 * -2 + n * -2) = 4
3 + (2 + -2n) = 4

Combine like terms: 3 + 2 = 5
5 + -2n = 4

Solving
5 + -2n = 4

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + -2n = 4 + -5

Combine like terms: 5 + -5 = 0
0 + -2n = 4 + -5
-2n = 4 + -5

Combine like terms: 4 + -5 = -1
-2n = -1

Divide each side by '-2'.
n = 0.5

Simplifying
n = 0.5