8(7k+9)=-k-42

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Solution for 8(7k+9)=-k-42 equation: 



8(7k+9)=-k-42

We move all terms to the left:

8(7k+9)-(-k-42)=0

We add all the numbers together, and all the variables

8(7k+9)-(-1k-42)=0

We multiply parentheses

56k-(-1k-42)+72=0

We get rid of parentheses

56k+1k+42+72=0

We add all the numbers together, and all the variables

57k+114=0

We move all terms containing k to the left, all other terms to the right

57k=-114

k=-114/57

k=-2

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