90=-6(-2k-2)-6

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Solution for 90=-6(-2k-2)-6 equation: 



90=-6(-2k-2)-6

We move all terms to the left:

90-(-6(-2k-2)-6)=0



We calculate terms in parentheses: -(-6(-2k-2)-6), so:

-6(-2k-2)-6

We multiply parentheses

12k+12-6

We add all the numbers together, and all the variables

12k+6

Back to the equation:

-(12k+6)



We get rid of parentheses

-12k-6+90=0

We add all the numbers together, and all the variables

-12k+84=0

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

-12k=-84

k=-84/-12

k=+7

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