3+5k=-7

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Solution for 3+5k=-7 equation: 



3+5k=-7

We move all terms to the left:

3+5k-(-7)=0

We add all the numbers together, and all the variables

5k+10=0

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

5k=-10

k=-10/5

k=-2

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