K=(4x+9)-(2x-1)

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Solution for K=(4x+9)-(2x-1) equation: 



=(4K+9)-(2K-1)

We move all terms to the left:

-((4K+9)-(2K-1))=0



We calculate terms in parentheses: -((4K+9)-(2K-1)), so:

(4K+9)-(2K-1)

We get rid of parentheses

4K-2K+9+1

We add all the numbers together, and all the variables

2K+10

Back to the equation:

-(2K+10)



We get rid of parentheses

-2K-10=0

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

-2K=10

K=10/-2

K=-5

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