x=(128-x)

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Solution for x=(128-x) equation: 


Simplifying
x = (128 + -1x)

Remove parenthesis around (128 + -1x)
x = 128 + -1x

Solving
x = 128 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
x + x = 128 + -1x + x

Combine like terms: x + x = 2x
2x = 128 + -1x + x

Combine like terms: -1x + x = 0
2x = 128 + 0
2x = 128

Divide each side by '2'.
x = 64

Simplifying
x = 64

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