-4=4(k+9)

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



-4=4(k+9)

We move all terms to the left:

-4-(4(k+9))=0



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

4(k+9)

We multiply parentheses

4k+36

Back to the equation:

-(4k+36)



We get rid of parentheses

-4k-36-4=0

We add all the numbers together, and all the variables

-4k-40=0

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

-4k=40

k=40/-4

k=-10

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