-20-7k=-7+3(1-3k)

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Solution for -20-7k=-7+3(1-3k) equation: 



-20-7k=-7+3(1-3k)

We move all terms to the left:

-20-7k-(-7+3(1-3k))=0

We add all the numbers together, and all the variables

-7k-(-7+3(-3k+1))-20=0



We calculate terms in parentheses: -(-7+3(-3k+1)), so:

-7+3(-3k+1)

determiningTheFunctionDomain
3(-3k+1)-7

We multiply parentheses

-9k+3-7

We add all the numbers together, and all the variables

-9k-4

Back to the equation:

-(-9k-4)



We get rid of parentheses

-7k+9k+4-20=0

We add all the numbers together, and all the variables

2k-16=0

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

2k=16

k=16/2

k=8

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