(3+5n)+9n=3+(5n+9n)

Solution for (3+5n)+9n=3+(5n+9n) equation:

Simplifying
(3 + 5n) + 9n = 3 + (5n + 9n)

Remove parenthesis around (3 + 5n)
3 + 5n + 9n = 3 + (5n + 9n)

Combine like terms: 5n + 9n = 14n
3 + 14n = 3 + (5n + 9n)

Combine like terms: 5n + 9n = 14n
3 + 14n = 3 + (14n)
3 + 14n = 3 + (14n)

Add '-3' to each side of the equation.
3 + -3 + 14n = 3 + -3 + (14n)

Combine like terms: 3 + -3 = 0
0 + 14n = 3 + -3 + (14n)
14n = 3 + -3 + (14n)

Combine like terms: 3 + -3 = 0
14n = 0 + (14n)
14n = (14n)

Add '-14n' to each side of the equation.
14n + -14n = (14n) + -14n

Combine like terms: 14n + -14n = 0
0 = (14n) + -14n

Combine like terms: (14n) + -14n = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.