k-(-7)=21

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Solution for k-(-7)=21 equation: 



k-(-7)=21

We move all terms to the left:

k-(-7)-(21)=0

determiningTheFunctionDomain
k-21-(-7)=0

We add all the numbers together, and all the variables

k-14=0

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

k=14

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