x+x+3=108

Solution for x+x+3=108 equation:

Simplifying
x + x + 3 = 108

Reorder the terms:
3 + x + x = 108

Combine like terms: x + x = 2x
3 + 2x = 108

Solving
3 + 2x = 108

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 2x = 108 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 108 + -3
2x = 108 + -3

Combine like terms: 108 + -3 = 105
2x = 105

Divide each side by '2'.
x = 52.5

Simplifying
x = 52.5