7k-(3-k)=12

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Solution for 7k-(3-k)=12 equation: 



7k-(3-k)=12

We move all terms to the left:

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

We add all the numbers together, and all the variables

7k-(-1k+3)-12=0

We get rid of parentheses

7k+1k-3-12=0

We add all the numbers together, and all the variables

8k-15=0

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

8k=15

k=15/8

k=1+7/8

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