P(k)=7k-56

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Solution for P(k)=7k-56 equation: 



(P)=7P-56

We move all terms to the left:

(P)-(7P-56)=0

We get rid of parentheses

P-7P+56=0

We add all the numbers together, and all the variables

-6P+56=0

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

-6P=-56

P=-56/-6

P=9+1/3

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