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1.64=2u-5
We move all terms to the left:
1.64-(2u-5)=0
We get rid of parentheses
-2u+5+1.64=0
We add all the numbers together, and all the variables
-2u+6.64=0
We move all terms containing u to the left, all other terms to the right
-2u=-6.64
u=-6.64/-2
u=3+0.64/2
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