-3+6k=21-2k

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Solution for -3+6k=21-2k equation: 



-3+6k=21-2k

We move all terms to the left:

-3+6k-(21-2k)=0

We add all the numbers together, and all the variables

6k-(-2k+21)-3=0

We get rid of parentheses

6k+2k-21-3=0

We add all the numbers together, and all the variables

8k-24=0

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

8k=24

k=24/8

k=3

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