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30(8.75)+11x=400
We move all terms to the left:
30(8.75)+11x-(400)=0
determiningTheFunctionDomain 11x-400+30(8.75)=0
We add all the numbers together, and all the variables
11x-137.5=0
We move all terms containing x to the left, all other terms to the right
11x=137.5
x=137.5/11
x=12+3.66666666667/7.33333333333
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