2n+19=2(3+18)+1

Solution for 2n+19=2(3+18)+1 equation:

Simplifying
2n + 19 = 2(3 + 18) + 1

Reorder the terms:
19 + 2n = 2(3 + 18) + 1

Combine like terms: 3 + 18 = 21
19 + 2n = 2(21) + 1

Multiply 2 * 21
19 + 2n = 42 + 1

Combine like terms: 42 + 1 = 43
19 + 2n = 43

Solving
19 + 2n = 43

Solving for variable 'n'.

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

Add '-19' to each side of the equation.
19 + -19 + 2n = 43 + -19

Combine like terms: 19 + -19 = 0
0 + 2n = 43 + -19
2n = 43 + -19

Combine like terms: 43 + -19 = 24
2n = 24

Divide each side by '2'.
n = 12

Simplifying
n = 12