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18=8-2(2x-7)
We move all terms to the left:
18-(8-2(2x-7))=0
We calculate terms in parentheses: -(8-2(2x-7)), so:We get rid of parentheses
8-2(2x-7)
determiningTheFunctionDomain -2(2x-7)+8
We multiply parentheses
-4x+14+8
We add all the numbers together, and all the variables
-4x+22
Back to the equation:
-(-4x+22)
4x-22+18=0
We add all the numbers together, and all the variables
4x-4=0
We move all terms containing x to the left, all other terms to the right
4x=4
x=4/4
x=1
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