(2x)+(x+40.5)=123

Solution for (2x)+(x+40.5)=123 equation:

Simplifying
(2x) + (x + 40.5) = 123

Reorder the terms:
(2x) + (40.5 + x) = 123

Remove parenthesis around (40.5 + x)
(2x) + 40.5 + x = 123

Reorder the terms:
40.5 + (2x) + x = 123

Combine like terms: (2x) + x = 3x
40.5 + 3x = 123

Solving
40.5 + 3x = 123

Solving for variable 'x'.

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

Add '-40.5' to each side of the equation.
40.5 + -40.5 + 3x = 123 + -40.5

Combine like terms: 40.5 + -40.5 = 0.0
0.0 + 3x = 123 + -40.5
3x = 123 + -40.5

Combine like terms: 123 + -40.5 = 82.5
3x = 82.5

Divide each side by '3'.
x = 27.5

Simplifying
x = 27.5