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28=-9u-8+5
We move all terms to the left:
28-(-9u-8+5)=0
We add all the numbers together, and all the variables
-(-9u-3)+28=0
We get rid of parentheses
9u+3+28=0
We add all the numbers together, and all the variables
9u+31=0
We move all terms containing u to the left, all other terms to the right
9u=-31
u=-31/9
u=-3+4/9
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