13+2k=-7

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Solution for 13+2k=-7 equation: 



13+2k=-7

We move all terms to the left:

13+2k-(-7)=0

We add all the numbers together, and all the variables

2k+20=0

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

2k=-20

k=-20/2

k=-10

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