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100-k-8=2(k-8)
We move all terms to the left:
100-k-8-(2(k-8))=0
We add all the numbers together, and all the variables
-1k-(2(k-8))+92=0
We calculate terms in parentheses: -(2(k-8)), so:We get rid of parentheses
2(k-8)
We multiply parentheses
2k-16
Back to the equation:
-(2k-16)
-1k-2k+16+92=0
We add all the numbers together, and all the variables
-3k+108=0
We move all terms containing k to the left, all other terms to the right
-3k=-108
k=-108/-3
k=+36
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