68=289-u

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Solution for 68=289-u equation:


Simplifying
68 = 289 + -1u

Solving
68 = 289 + -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.
68 + u = 289 + -1u + u

Combine like terms: -1u + u = 0
68 + u = 289 + 0
68 + u = 289

Add '-68' to each side of the equation.
68 + -68 + u = 289 + -68

Combine like terms: 68 + -68 = 0
0 + u = 289 + -68
u = 289 + -68

Combine like terms: 289 + -68 = 221
u = 221

Simplifying
u = 221

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