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3-12.75u=-3.41
We move all terms to the left:
3-12.75u-(-3.41)=0
We add all the numbers together, and all the variables
-12.75u+6.41=0
We move all terms containing u to the left, all other terms to the right
-12.75u=-6.41
u=-6.41/-12.75
u=1/1.98907956318
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