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161=7+7(-2x+8)
We move all terms to the left:
161-(7+7(-2x+8))=0
We calculate terms in parentheses: -(7+7(-2x+8)), so:We get rid of parentheses
7+7(-2x+8)
determiningTheFunctionDomain 7(-2x+8)+7
We multiply parentheses
-14x+56+7
We add all the numbers together, and all the variables
-14x+63
Back to the equation:
-(-14x+63)
14x-63+161=0
We add all the numbers together, and all the variables
14x+98=0
We move all terms containing x to the left, all other terms to the right
14x=-98
x=-98/14
x=-7
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