-21-4k=6-5(7k+3)

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Solution for -21-4k=6-5(7k+3) equation: 



-21-4k=6-5(7k+3)

We move all terms to the left:

-21-4k-(6-5(7k+3))=0



We calculate terms in parentheses: -(6-5(7k+3)), so:

6-5(7k+3)

determiningTheFunctionDomain
-5(7k+3)+6

We multiply parentheses

-35k-15+6

We add all the numbers together, and all the variables

-35k-9

Back to the equation:

-(-35k-9)



We get rid of parentheses

-4k+35k+9-21=0

We add all the numbers together, and all the variables

31k-12=0

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

31k=12

k=12/31

k=12/31

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