-k+20=12k-19

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Solution for -k+20=12k-19 equation: 



-k+20=12k-19

We move all terms to the left:

-k+20-(12k-19)=0

We add all the numbers together, and all the variables

-1k-(12k-19)+20=0

We get rid of parentheses

-1k-12k+19+20=0

We add all the numbers together, and all the variables

-13k+39=0

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

-13k=-39

k=-39/-13

k=+3

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