49=9+2(-8+4k)

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Solution for 49=9+2(-8+4k) equation: 



49=9+2(-8+4k)

We move all terms to the left:

49-(9+2(-8+4k))=0

We add all the numbers together, and all the variables

-(9+2(4k-8))+49=0



We calculate terms in parentheses: -(9+2(4k-8)), so:

9+2(4k-8)

determiningTheFunctionDomain
2(4k-8)+9

We multiply parentheses

8k-16+9

We add all the numbers together, and all the variables

8k-7

Back to the equation:

-(8k-7)



We get rid of parentheses

-8k+7+49=0

We add all the numbers together, and all the variables

-8k+56=0

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

-8k=-56

k=-56/-8

k=+7

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