-9-2k=7+4(5-5k)

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Solution for -9-2k=7+4(5-5k) equation: 



-9-2k=7+4(5-5k)

We move all terms to the left:

-9-2k-(7+4(5-5k))=0

We add all the numbers together, and all the variables

-2k-(7+4(-5k+5))-9=0



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

7+4(-5k+5)

determiningTheFunctionDomain
4(-5k+5)+7

We multiply parentheses

-20k+20+7

We add all the numbers together, and all the variables

-20k+27

Back to the equation:

-(-20k+27)



We get rid of parentheses

-2k+20k-27-9=0

We add all the numbers together, and all the variables

18k-36=0

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

18k=36

k=36/18

k=2

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