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8.1=-11.1+6u
We move all terms to the left:
8.1-(-11.1+6u)=0
We add all the numbers together, and all the variables
-(6u-11.1)+8.1=0
We get rid of parentheses
-6u+11.1+8.1=0
We add all the numbers together, and all the variables
-6u+19.2=0
We move all terms containing u to the left, all other terms to the right
-6u=-19.2
u=-19.2/-6
u=3+1/5
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