The cost of an air conditioner is b dollars more than 3 times the cost

The cost of an air conditioner is b dollars more than 3 times the cost of a radio. The total of an air conditioner and a radio is v dollars. Which of the following is the cost of an air conditioner, in dollars? A. \(\fracv-b4\) B. \(\fracv-b3\) C. \(\frac2y+b3\) D. \(\fracv+3b4\) E. (…)