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-4=2(-1)+b
We move all terms to the left:
-4-(2(-1)+b)=0
We calculate terms in parentheses: -(2(-1)+b), so:We get rid of parentheses
2(-1)+b
determiningTheFunctionDomain b+2(-1)
We add all the numbers together, and all the variables
b-2
Back to the equation:
-(b-2)
-b+2-4=0
We add all the numbers together, and all the variables
-1b-2=0
We move all terms containing b to the left, all other terms to the right
-b=2
b=2/-1
b=-2
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