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-8.4u-27=0.3u-173.39
We move all terms to the left:
-8.4u-27-(0.3u-173.39)=0
We get rid of parentheses
-8.4u-0.3u+173.39-27=0
We add all the numbers together, and all the variables
-8.7u+146.39=0
We move all terms containing u to the left, all other terms to the right
-8.7u=-146.39
u=-146.39/-8.7
u=16+6.0420168067227/7.3109243697479
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