3k-5=-21+k

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Solution for 3k-5=-21+k equation: 



3k-5=-21+k

We move all terms to the left:

3k-5-(-21+k)=0

We add all the numbers together, and all the variables

3k-(k-21)-5=0

We get rid of parentheses

3k-k+21-5=0

We add all the numbers together, and all the variables

2k+16=0

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

2k=-16

k=-16/2

k=-8

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