K3+4x=9x+13

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Solution for K3+4x=9x+13 equation: 



3+4K=9K+13

We move all terms to the left:

3+4K-(9K+13)=0

We get rid of parentheses

4K-9K-13+3=0

We add all the numbers together, and all the variables

-5K-10=0

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

-5K=10

K=10/-5

K=-2

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