287=85-u

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Solution for 287=85-u equation:


Simplifying
287 = 85 + -1u

Solving
287 = 85 + -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.
287 + u = 85 + -1u + u

Combine like terms: -1u + u = 0
287 + u = 85 + 0
287 + u = 85

Add '-287' to each side of the equation.
287 + -287 + u = 85 + -287

Combine like terms: 287 + -287 = 0
0 + u = 85 + -287
u = 85 + -287

Combine like terms: 85 + -287 = -202
u = -202

Simplifying
u = -202

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