-129+6=9k-7(-4k+7)

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Solution for -129+6=9k-7(-4k+7) equation: 



-129+6=9k-7(-4k+7)

We move all terms to the left:

-129+6-(9k-7(-4k+7))=0

We add all the numbers together, and all the variables

-(9k-7(-4k+7))-123=0



We calculate terms in parentheses: -(9k-7(-4k+7)), so:

9k-7(-4k+7)

We multiply parentheses

9k+28k-49

We add all the numbers together, and all the variables

37k-49

Back to the equation:

-(37k-49)



We get rid of parentheses

-37k+49-123=0

We add all the numbers together, and all the variables

-37k-74=0

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

-37k=74

k=74/-37

k=-2

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