20=9+k/2

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Solution for 20=9+k/2 equation: 



20=9+k/2

We move all terms to the left:

20-(9+k/2)=0

We add all the numbers together, and all the variables

-(k/2+9)+20=0

We get rid of parentheses

-k/2-9+20=0

We multiply all the terms by the denominator


-k-9*2+20*2=0

We add all the numbers together, and all the variables

-1k+22=0

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

-k=-22

k=-22/-1

k=+22

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