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

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

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

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

Combine like terms: 3 + -2 = 1
3n = 3 + (1 + 2n)

Remove parenthesis around (1 + 2n)
3n = 3 + 1 + 2n

Combine like terms: 3 + 1 = 4
3n = 4 + 2n

Solving
3n = 4 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
3n + -2n = 4 + 2n + -2n

Combine like terms: 3n + -2n = 1n
1n = 4 + 2n + -2n

Combine like terms: 2n + -2n = 0
1n = 4 + 0
1n = 4

Divide each side by '1'.
n = 4

Simplifying
n = 4