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X+(+1)+(X+2)=39
We move all terms to the left:
X+(+1)+(X+2)-(39)=0
determiningTheFunctionDomain X+(X+2)-39+(+1)=0
We add all the numbers together, and all the variables
X+(X+2)-39+1=0
We add all the numbers together, and all the variables
X+(X+2)-38=0
We get rid of parentheses
X+X+2-38=0
We add all the numbers together, and all the variables
2X-36=0
We move all terms containing X to the left, all other terms to the right
2X=36
X=36/2
X=18
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