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-2.08-8.6u=-9.76+1.9u+8.7u
We move all terms to the left:
-2.08-8.6u-(-9.76+1.9u+8.7u)=0
We add all the numbers together, and all the variables
-8.6u-(10.6u-9.76)-2.08=0
We get rid of parentheses
-8.6u-10.6u+9.76-2.08=0
We add all the numbers together, and all the variables
-19.2u+7.68=0
We move all terms containing u to the left, all other terms to the right
-19.2u=-7.68
u=-7.68/-19.2
u=4.5714285714286/11.428571428571
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