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-8.8=-1.3+u/3
We move all terms to the left:
-8.8-(-1.3+u/3)=0
We add all the numbers together, and all the variables
-(u/3-1.3)-8.8=0
We get rid of parentheses
-u/3+1.3-8.8=0
We multiply all the terms by the denominator
-u+(1.3)*3-(8.8)*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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