7k-12=3+2k

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Solution for 7k-12=3+2k equation: 



7k-12=3+2k

We move all terms to the left:

7k-12-(3+2k)=0

We add all the numbers together, and all the variables

7k-(2k+3)-12=0

We get rid of parentheses

7k-2k-3-12=0

We add all the numbers together, and all the variables

5k-15=0

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

5k=15

k=15/5

k=3

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