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398+200+24.25u=1.762
We move all terms to the left:
398+200+24.25u-(1.762)=0
We add all the numbers together, and all the variables
24.25u+596.238=0
We move all terms containing u to the left, all other terms to the right
24.25u=-596.238
u=-596.238/24.25
u=-24+6.361930294906/10.835567470956
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