3=3+4n+2n

Solution for 3=3+4n+2n equation:

Simplifying
3 = 3 + 4n + 2n

Combine like terms: 4n + 2n = 6n
3 = 3 + 6n

Add '-3' to each side of the equation.
3 + -3 = 3 + -3 + 6n

Combine like terms: 3 + -3 = 0
0 = 3 + -3 + 6n

Combine like terms: 3 + -3 = 0
0 = 0 + 6n
0 = 6n

Solving
0 = 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
0 + -6n = 6n + -6n
Remove the zero:
-6n = 6n + -6n

Combine like terms: 6n + -6n = 0
-6n = 0

Divide each side by '-6'.
n = 0

Simplifying
n = 0