First you would distribute 1/2 to "c" and 6. Which would be 1/2c+3=7. Then you would subtract the 3 from the 7. Which would be 1/2c=4. Last you would divide both sides by 1/2. Which would get you your answer; c=8.
First you would distribute 1/2 to "c" and 6. Which would be 1/2c+3=7. Then you would subtract the 3 from the 7. Which would be 1/2c=4. Last you would divide both sides by 1/2. Which would get you your answer; c=8.