Solve for c.
8c = 5c + 21

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

Answered by MathG33k | 2024-06-10

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.

Answered by Cailyyn | 2024-06-10

To solve the equation 8 c = 5 c + 21 , we isolate c by subtracting 5 c from both sides to get 3 c = 21 . Dividing both sides by 3 gives us the solution c = 7 , which can be verified by substituting back into the original equation.
;

Answered by MathG33k | 2024-12-20