3+11x=123+x

Solution for 3+11x=123+x equation:

Simplifying
3 + 11x = 123 + x

Solving
3 + 11x = 123 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3 + 11x + -1x = 123 + x + -1x

Combine like terms: 11x + -1x = 10x
3 + 10x = 123 + x + -1x

Combine like terms: x + -1x = 0
3 + 10x = 123 + 0
3 + 10x = 123

Add '-3' to each side of the equation.
3 + -3 + 10x = 123 + -3

Combine like terms: 3 + -3 = 0
0 + 10x = 123 + -3
10x = 123 + -3

Combine like terms: 123 + -3 = 120
10x = 120

Divide each side by '10'.
x = 12

Simplifying
x = 12