-90=-8+2(7+6k)

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Solution for -90=-8+2(7+6k) equation: 



-90=-8+2(7+6k)

We move all terms to the left:

-90-(-8+2(7+6k))=0

We add all the numbers together, and all the variables

-(-8+2(6k+7))-90=0



We calculate terms in parentheses: -(-8+2(6k+7)), so:

-8+2(6k+7)

determiningTheFunctionDomain
2(6k+7)-8

We multiply parentheses

12k+14-8

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-96=0

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

-12k=96

k=96/-12

k=-8

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