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7=5-(-w)
We move all terms to the left:
7-(5-(-w))=0
We add all the numbers together, and all the variables
-(5-(-1w))+7=0
We calculate terms in parentheses: -(5-(-1w)), so:We get rid of parentheses
5-(-1w)
determiningTheFunctionDomain -(-1w)+5
We get rid of parentheses
1w+5
We add all the numbers together, and all the variables
w+5
Back to the equation:
-(w+5)
-w-5+7=0
We add all the numbers together, and all the variables
-1w+2=0
We move all terms containing w to the left, all other terms to the right
-w=-2
w=-2/-1
w=+2
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