8=-2(-10+k)

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Solution for 8=-2(-10+k) equation: 



8=-2(-10+k)

We move all terms to the left:

8-(-2(-10+k))=0

We add all the numbers together, and all the variables

-(-2(k-10))+8=0



We calculate terms in parentheses: -(-2(k-10)), so:

-2(k-10)

We multiply parentheses

-2k+20

Back to the equation:

-(-2k+20)



We get rid of parentheses

2k-20+8=0

We add all the numbers together, and all the variables

2k-12=0

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

2k=12

k=12/2

k=6

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