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34=-u+209
We move all terms to the left:
34-(-u+209)=0
We add all the numbers together, and all the variables
-(-1u+209)+34=0
We get rid of parentheses
1u-209+34=0
We add all the numbers together, and all the variables
u-175=0
We move all terms containing u to the left, all other terms to the right
u=175
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