a=a+x

Solution for a=a+x equation:

Simplifying
a = a + x

Add '-1a' to each side of the equation.
a + -1a = a + -1a + x

Combine like terms: a + -1a = 0
0 = a + -1a + x

Combine like terms: a + -1a = 0
0 = 0 + x
0 = x

Solving
0 = 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.
0 + -1x = x + -1x
Remove the zero:
-1x = x + -1x

Combine like terms: x + -1x = 0
-1x = 0

Divide each side by '-1'.
x = 0

Simplifying
x = 0