378=-6+6(8-7k)

Solution for 378=-6+6(8-7k) equation:

378=-6+6(8-7k)

We move all terms to the left:

378-(-6+6(8-7k))=0

We add all the numbers together, and all the variables

-(-6+6(-7k+8))+378=0


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

-6+6(-7k+8)

determiningTheFunctionDomain
6(-7k+8)-6

We multiply parentheses

-42k+48-6

We add all the numbers together, and all the variables

-42k+42

Back to the equation:

-(-42k+42)


We get rid of parentheses

42k-42+378=0

We add all the numbers together, and all the variables

42k+336=0

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

42k=-336

k=-336/42

k=-8