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-(12+8a=-100
We move all terms to the left:
-(12+8a-(-100)=0
We calculate terms in parentheses: -(12+8a-(-100), so:a=0/-8
12+8a-(-100
determiningTheFunctionDomain 8a+12-(-100
We add all the numbers together, and all the variables
8a
Back to the equation:
-(8a)
a=0
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