8=k-1

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Solution for 8=k-1 equation: 



8=k-1

We move all terms to the left:

8-(k-1)=0

We get rid of parentheses

-k+1+8=0

We add all the numbers together, and all the variables

-1k+9=0

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

-k=-9

k=-9/-1

k=+9

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