-u+127=255

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Solution for -u+127=255 equation: 


Simplifying
-1u + 127 = 255

Reorder the terms:
127 + -1u = 255

Solving
127 + -1u = 255

Solving for variable 'u'.

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

Add '-127' to each side of the equation.
127 + -127 + -1u = 255 + -127

Combine like terms: 127 + -127 = 0
0 + -1u = 255 + -127
-1u = 255 + -127

Combine like terms: 255 + -127 = 128
-1u = 128

Divide each side by '-1'.
u = -128

Simplifying
u = -128

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