-81=3+7(k-5)

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Solution for -81=3+7(k-5) equation: 



-81=3+7(k-5)

We move all terms to the left:

-81-(3+7(k-5))=0



We calculate terms in parentheses: -(3+7(k-5)), so:

3+7(k-5)

determiningTheFunctionDomain
7(k-5)+3

We multiply parentheses

7k-35+3

We add all the numbers together, and all the variables

7k-32

Back to the equation:

-(7k-32)



We get rid of parentheses

-7k+32-81=0

We add all the numbers together, and all the variables

-7k-49=0

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

-7k=49

k=49/-7

k=-7

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