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12x+13=3(4x)
We move all terms to the left:
12x+13-(3(4x))=0
determiningTheFunctionDomain 12x-34x+13=0
We add all the numbers together, and all the variables
-22x+13=0
We move all terms containing x to the left, all other terms to the right
-22x=-13
x=-13/-22
x=13/22
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