7-2k=20

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Solution for 7-2k=20 equation: 



7-2k=20

We move all terms to the left:

7-2k-(20)=0

We add all the numbers together, and all the variables

-2k-13=0

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

-2k=13

k=13/-2

k=-6+1/2

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