Verified Answer :

MathG33k

Remember this rule: Whenever you try to isolate the variable do the same operation to both sides
Using the rule above subtract 5c from both sides getting 3c = 21
Divide by 3 to both sides
Now you have c = 7
Thats you answer, if you have anymore questions just PM me

Well, subtract 5c from both sides, so cross out 5c and do 8c-5c which is 3c. S 3c=21. 21 divided by 3 is 7. So c is. 7.

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