279=78-u

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Solution for 279=78-u equation: 



279=78-u

We move all terms to the left:

279-(78-u)=0

We add all the numbers together, and all the variables

-(-1u+78)+279=0

We get rid of parentheses

1u-78+279=0

We add all the numbers together, and all the variables

u+201=0

We move all terms containing u to the left, all other terms to the right

u=-201

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