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4+u/10.24=12
We move all terms to the left:
4+u/10.24-(12)=0
We add all the numbers together, and all the variables
u/10.24-8=0
We multiply all the terms by the denominator
u-8*10.24=0
We add all the numbers together, and all the variables
u-81.92=0
We move all terms containing u to the left, all other terms to the right
u=81.92
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