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Hello there.

Question: What is 2c+7=21 please help

Answer: Solve the equation:
Subtract 7 from both sides:
21 - 7 = 14
2c = 14.
Divide both sides by 2:
14/2 = 7
c = 7.

Hope This Helps You!
Good Luck Studying ^-^
Enqland
What is 2c+7=21

1. firstly you minus the 7 from both sides

                      2c+7=21
                          -7    -7

= 2c=14



2. Then you divide each side by two.


                     2c=14
                      ÷2  ÷2


= c=7


3. Then substitute it back in:

1.       2x7 = 14
2.       14+7 =21


C=7