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54=10u-4
We move all terms to the left:
54-(10u-4)=0
We get rid of parentheses
-10u+4+54=0
We add all the numbers together, and all the variables
-10u+58=0
We move all terms containing u to the left, all other terms to the right
-10u=-58
u=-58/-10
u=5+4/5
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