Question 25114
If you are trying to find the value of c:
You did the first part right. Now you need to combine like terms.
20c-12c=8c
18+12=30
(your equation should look like this)
8c+30=110
then we need to isolate the variable,so..
subtract 30 from both sides of the equal sign.
8C=80
then divide both sides by 8
80 divided by 8 is 10
So c=10

Hope this helps!!
Linz