-7=k-1-3k

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Solution for -7=k-1-3k equation: 



-7=k-1-3k

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-2k-1)-7=0

We get rid of parentheses

2k+1-7=0

We add all the numbers together, and all the variables

2k-6=0

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

2k=6

k=6/2

k=3

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