-100=-10(k-4)

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Solution for -100=-10(k-4) equation: 



-100=-10(k-4)

We move all terms to the left:

-100-(-10(k-4))=0



We calculate terms in parentheses: -(-10(k-4)), so:

-10(k-4)

We multiply parentheses

-10k+40

Back to the equation:

-(-10k+40)



We get rid of parentheses

10k-40-100=0

We add all the numbers together, and all the variables

10k-140=0

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

10k=140

k=140/10

k=14

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