3k-k=3+7

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



3k-k=3+7

We move all terms to the left:

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

We add all the numbers together, and all the variables

3k-k-10=0

We add all the numbers together, and all the variables

2k-10=0

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

2k=10

k=10/2

k=5

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