3k-42=-3k+66

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Solution for 3k-42=-3k+66 equation: 



3k-42=-3k+66

We move all terms to the left:

3k-42-(-3k+66)=0

We get rid of parentheses

3k+3k-66-42=0

We add all the numbers together, and all the variables

6k-108=0

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

6k=108

k=108/6

k=18

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