-19=7k+5k

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Solution for -19=7k+5k equation: 



-19=7k+5k

We move all terms to the left:

-19-(7k+5k)=0

We add all the numbers together, and all the variables

-(+12k)-19=0

We get rid of parentheses

-12k-19=0

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

-12k=19

k=19/-12

k=-1+7/12

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