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2x-9=3(4)
We move all terms to the left:
2x-9-(3(4))=0
determiningTheFunctionDomain 2x-9-34=0
We add all the numbers together, and all the variables
2x-43=0
We move all terms containing x to the left, all other terms to the right
2x=43
x=43/2
x=21+1/2
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