(2n+1)+(2n+3)=19

Solution for (2n+1)+(2n+3)=19 equation:

Simplifying
(2n + 1) + (2n + 3) = 19

Reorder the terms:
(1 + 2n) + (2n + 3) = 19

Remove parenthesis around (1 + 2n)
1 + 2n + (2n + 3) = 19

Reorder the terms:
1 + 2n + (3 + 2n) = 19

Remove parenthesis around (3 + 2n)
1 + 2n + 3 + 2n = 19

Reorder the terms:
1 + 3 + 2n + 2n = 19

Combine like terms: 1 + 3 = 4
4 + 2n + 2n = 19

Combine like terms: 2n + 2n = 4n
4 + 4n = 19

Solving
4 + 4n = 19

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + 4n = 19 + -4

Combine like terms: 4 + -4 = 0
0 + 4n = 19 + -4
4n = 19 + -4

Combine like terms: 19 + -4 = 15
4n = 15

Divide each side by '4'.
n = 3.75

Simplifying
n = 3.75