-20=-2(4k-7)-7(1-5k)

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Solution for -20=-2(4k-7)-7(1-5k) equation: 



-20=-2(4k-7)-7(1-5k)

We move all terms to the left:

-20-(-2(4k-7)-7(1-5k))=0

We add all the numbers together, and all the variables

-(-2(4k-7)-7(-5k+1))-20=0



We calculate terms in parentheses: -(-2(4k-7)-7(-5k+1)), so:

-2(4k-7)-7(-5k+1)

We multiply parentheses

-8k+35k+14-7

We add all the numbers together, and all the variables

27k+7

Back to the equation:

-(27k+7)



We get rid of parentheses

-27k-7-20=0

We add all the numbers together, and all the variables

-27k-27=0

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

-27k=27

k=27/-27

k=-1

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