15=19-13k-31

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Solution for 15=19-13k-31 equation: 



15=19-13k-31

We move all terms to the left:

15-(19-13k-31)=0

We add all the numbers together, and all the variables

-(-13k-12)+15=0

We get rid of parentheses

13k+12+15=0

We add all the numbers together, and all the variables

13k+27=0

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

13k=-27

k=-27/13

k=-2+1/13

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