-392=-8(-7+8k)

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Solution for -392=-8(-7+8k) equation: 



-392=-8(-7+8k)

We move all terms to the left:

-392-(-8(-7+8k))=0

We add all the numbers together, and all the variables

-(-8(8k-7))-392=0



We calculate terms in parentheses: -(-8(8k-7)), so:

-8(8k-7)

We multiply parentheses

-64k+56

Back to the equation:

-(-64k+56)



We get rid of parentheses

64k-56-392=0

We add all the numbers together, and all the variables

64k-448=0

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

64k=448

k=448/64

k=7

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