281=188-u

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Solution for 281=188-u equation:


Simplifying
281 = 188 + -1u

Solving
281 = 188 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
281 + u = 188 + -1u + u

Combine like terms: -1u + u = 0
281 + u = 188 + 0
281 + u = 188

Add '-281' to each side of the equation.
281 + -281 + u = 188 + -281

Combine like terms: 281 + -281 = 0
0 + u = 188 + -281
u = 188 + -281

Combine like terms: 188 + -281 = -93
u = -93

Simplifying
u = -93

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