2(2n+5)=123

Solution for 2(2n+5)=123 equation:

Simplifying
2(2n + 5) = 123

Reorder the terms:
2(5 + 2n) = 123
(5 * 2 + 2n * 2) = 123
(10 + 4n) = 123

Solving
10 + 4n = 123

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 + 4n = 123 + -10

Combine like terms: 10 + -10 = 0
0 + 4n = 123 + -10
4n = 123 + -10

Combine like terms: 123 + -10 = 113
4n = 113

Divide each side by '4'.
n = 28.25

Simplifying
n = 28.25