20=6+7(c-3)

Solution for 20=6+7(c-3) equation:

20=6+7(c-3)

We move all terms to the left:

20-(6+7(c-3))=0


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

6+7(c-3)

determiningTheFunctionDomain
7(c-3)+6

We multiply parentheses

7c-21+6

We add all the numbers together, and all the variables

7c-15

Back to the equation:

-(7c-15)


We get rid of parentheses

-7c+15+20=0

We add all the numbers together, and all the variables

-7c+35=0

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

-7c=-35

c=-35/-7

c=+5