K(x)=2x+4

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Solution for K(x)=2x+4 equation: 



(K)=2K+4

We move all terms to the left:

(K)-(2K+4)=0

We get rid of parentheses

K-2K-4=0

We add all the numbers together, and all the variables

-1K-4=0

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

-K=4

K=4/-1

K=-4

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