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113=8+7(8-k)
We move all terms to the left:
113-(8+7(8-k))=0
We add all the numbers together, and all the variables
-(8+7(-1k+8))+113=0
We calculate terms in parentheses: -(8+7(-1k+8)), so:We get rid of parentheses
8+7(-1k+8)
determiningTheFunctionDomain 7(-1k+8)+8
We multiply parentheses
-7k+56+8
We add all the numbers together, and all the variables
-7k+64
Back to the equation:
-(-7k+64)
7k-64+113=0
We add all the numbers together, and all the variables
7k+49=0
We move all terms containing k to the left, all other terms to the right
7k=-49
k=-49/7
k=-7
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