What is the correct answer if you rearrange the following, making "c" the subject? (3c+b)/2 = c + a

(3c+b)/2 = c + a To make c the subject of this equation, we first must get all the c variables together on one side of the equation.To do this, first we shall multiply both sides by 2 to remove it from the bottom of the left hand side . from this we get: 3c+b = 2c + 2anext we subtract 2c from both sides to get: 3c-2c +b = 2athen we subject b from both sides: 3c-2c = 2a-bfinally we add the c values together to get an answer of c = 2a-b and this is our final answer