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10.50u=200+6.40u
We move all terms to the left:
10.50u-(200+6.40u)=0
We add all the numbers together, and all the variables
10.50u-(6.40u+200)=0
We get rid of parentheses
10.50u-6.40u-200=0
We add all the numbers together, and all the variables
4.1u-200=0
We move all terms containing u to the left, all other terms to the right
4.1u=200
u=200/4.1
u=48+2.66666666667/3.41666666667
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