-4k-9+6k=31+4k

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Solution for -4k-9+6k=31+4k equation: 



-4k-9+6k=31+4k

We move all terms to the left:

-4k-9+6k-(31+4k)=0

We add all the numbers together, and all the variables

-4k+6k-(4k+31)-9=0

We add all the numbers together, and all the variables

2k-(4k+31)-9=0

We get rid of parentheses

2k-4k-31-9=0

We add all the numbers together, and all the variables

-2k-40=0

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

-2k=40

k=40/-2

k=-20

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