2x-1-x=128

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Solution for 2x-1-x=128 equation:


Simplifying
2x + -1 + -1x = 128

Reorder the terms:
-1 + 2x + -1x = 128

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

Solving
-1 + 1x = 128

Solving for variable 'x'.

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

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

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

Combine like terms: 128 + 1 = 129
1x = 129

Divide each side by '1'.
x = 129

Simplifying
x = 129

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