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-2=u/3-8
We move all terms to the left:
-2-(u/3-8)=0
We get rid of parentheses
-u/3+8-2=0
We multiply all the terms by the denominator
-u+8*3-2*3=0
We add all the numbers together, and all the variables
-1u+18=0
We move all terms containing u to the left, all other terms to the right
-u=-18
u=-18/-1
u=+18
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