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227=2-u
We move all terms to the left:
227-(2-u)=0
We add all the numbers together, and all the variables
-(-1u+2)+227=0
We get rid of parentheses
1u-2+227=0
We add all the numbers together, and all the variables
u+225=0
We move all terms containing u to the left, all other terms to the right
u=-225
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