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45=-(-2)+x
We move all terms to the left:
45-(-(-2)+x)=0
We calculate terms in parentheses: -(-(-2)+x), so:We get rid of parentheses
-(-2)+x
determiningTheFunctionDomain x-(-2)
We add all the numbers together, and all the variables
x+2
Back to the equation:
-(x+2)
-x-2+45=0
We add all the numbers together, and all the variables
-1x+43=0
We move all terms containing x to the left, all other terms to the right
-x=-43
x=-43/-1
x=+43
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