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-11.5=1.3+8u
We move all terms to the left:
-11.5-(1.3+8u)=0
We add all the numbers together, and all the variables
-(8u+1.3)-11.5=0
We get rid of parentheses
-8u-1.3-11.5=0
We add all the numbers together, and all the variables
-8u-12.8=0
We move all terms containing u to the left, all other terms to the right
-8u=12.8
u=12.8/-8
u=-1+1/1.6666666666667
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