7-20k=19-18k

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Solution for 7-20k=19-18k equation: 



7-20k=19-18k

We move all terms to the left:

7-20k-(19-18k)=0

We add all the numbers together, and all the variables

-20k-(-18k+19)+7=0

We get rid of parentheses

-20k+18k-19+7=0

We add all the numbers together, and all the variables

-2k-12=0

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

-2k=12

k=12/-2

k=-6

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