(3+n)+7=3+(6+7)

Solution for (3+n)+7=3+(6+7) equation:

Simplifying
(3 + n) + 7 = 3 + (6 + 7)

Remove parenthesis around (3 + n)
3 + n + 7 = 3 + (6 + 7)

Reorder the terms:
3 + 7 + n = 3 + (6 + 7)

Combine like terms: 3 + 7 = 10
10 + n = 3 + (6 + 7)

Combine like terms: 6 + 7 = 13
10 + n = 3 + (13)
10 + n = 3 + 13

Combine like terms: 3 + 13 = 16
10 + n = 16

Solving
10 + n = 16

Solving for variable 'n'.

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

Add '-10' to each side of the equation.
10 + -10 + n = 16 + -10

Combine like terms: 10 + -10 = 0
0 + n = 16 + -10
n = 16 + -10

Combine like terms: 16 + -10 = 6
n = 6

Simplifying
n = 6