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23=-5+3(z-7)
We move all terms to the left:
23-(-5+3(z-7))=0
We calculate terms in parentheses: -(-5+3(z-7)), so:We get rid of parentheses
-5+3(z-7)
determiningTheFunctionDomain 3(z-7)-5
We multiply parentheses
3z-21-5
We add all the numbers together, and all the variables
3z-26
Back to the equation:
-(3z-26)
-3z+26+23=0
We add all the numbers together, and all the variables
-3z+49=0
We move all terms containing z to the left, all other terms to the right
-3z=-49
z=-49/-3
z=16+1/3
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