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0.77+-4u=-14.83
We move all terms to the left:
0.77+-4u-(-14.83)=0
We add all the numbers together, and all the variables
-4u+15.6=0
We move all terms containing u to the left, all other terms to the right
-4u=-15.6
u=-15.6/-4
u=3+2.25/2.5
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