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-2.2=u/3+5.3
We move all terms to the left:
-2.2-(u/3+5.3)=0
We get rid of parentheses
-u/3-5.3-2.2=0
We multiply all the terms by the denominator
-u-(5.3)*3-(2.2)*3=0
We add all the numbers together, and all the variables
-1u-22.5=0
We move all terms containing u to the left, all other terms to the right
-u=22.5
u=22.5/-1
u=-22+0.5/1
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