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5.2=30.8-8u
We move all terms to the left:
5.2-(30.8-8u)=0
We add all the numbers together, and all the variables
-(-8u+30.8)+5.2=0
We get rid of parentheses
8u-30.8+5.2=0
We add all the numbers together, and all the variables
8u-25.6=0
We move all terms containing u to the left, all other terms to the right
8u=25.6
u=25.6/8
u=3+1/5
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