-30-2k=7k-3(2k+6)

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Solution for -30-2k=7k-3(2k+6) equation: 



-30-2k=7k-3(2k+6)

We move all terms to the left:

-30-2k-(7k-3(2k+6))=0



We calculate terms in parentheses: -(7k-3(2k+6)), so:

7k-3(2k+6)

We multiply parentheses

7k-6k-18

We add all the numbers together, and all the variables

k-18

Back to the equation:

-(k-18)



We get rid of parentheses

-2k-k+18-30=0

We add all the numbers together, and all the variables

-3k-12=0

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

-3k=12

k=12/-3

k=-4

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