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18=4-(z+8)
We move all terms to the left:
18-(4-(z+8))=0
We calculate terms in parentheses: -(4-(z+8)), so:We get rid of parentheses
4-(z+8)
determiningTheFunctionDomain -(z+8)+4
We get rid of parentheses
-z-8+4
We add all the numbers together, and all the variables
-1z-4
Back to the equation:
-(-1z-4)
1z+4+18=0
We add all the numbers together, and all the variables
z+22=0
We move all terms containing z to the left, all other terms to the right
z=-22
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