-27=7(-4+k)-8(k-1)

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Solution for -27=7(-4+k)-8(k-1) equation: 



-27=7(-4+k)-8(k-1)

We move all terms to the left:

-27-(7(-4+k)-8(k-1))=0

We add all the numbers together, and all the variables

-(7(k-4)-8(k-1))-27=0



We calculate terms in parentheses: -(7(k-4)-8(k-1)), so:

7(k-4)-8(k-1)

We multiply parentheses

7k-8k-28+8

We add all the numbers together, and all the variables

-1k-20

Back to the equation:

-(-1k-20)



We get rid of parentheses

1k+20-27=0

We add all the numbers together, and all the variables

k-7=0

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

k=7

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