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(4*3)+x=89
We move all terms to the left:
(4*3)+x-(89)=0
determiningTheFunctionDomain x-89+(4*3)=0
We add all the numbers together, and all the variables
x-89+12=0
We add all the numbers together, and all the variables
x-77=0
We move all terms containing x to the left, all other terms to the right
x=77
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