49=2k+9

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Solution for 49=2k+9 equation: 



49=2k+9

We move all terms to the left:

49-(2k+9)=0

We get rid of parentheses

-2k-9+49=0

We add all the numbers together, and all the variables

-2k+40=0

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

-2k=-40

k=-40/-2

k=+20

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