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13-5n=8-2(7n-7)
We move all terms to the left:
13-5n-(8-2(7n-7))=0
We calculate terms in parentheses: -(8-2(7n-7)), so:We get rid of parentheses
8-2(7n-7)
determiningTheFunctionDomain -2(7n-7)+8
We multiply parentheses
-14n+14+8
We add all the numbers together, and all the variables
-14n+22
Back to the equation:
-(-14n+22)
-5n+14n-22+13=0
We add all the numbers together, and all the variables
9n-9=0
We move all terms containing n to the left, all other terms to the right
9n=9
n=9/9
n=1
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