1-2=k;(-2,-1)

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Solution for 1-2=k;(-2,-1) equation: 



1-2=k(-2.-1)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(k(-3))+1-2=0

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(k(-3)), so:

k(-3)

We multiply parentheses

-3k

Back to the equation:

-(-3k)



We get rid of parentheses

3k-1=0

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

3k=1

k=1/3

k=1/3

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