Question

James Bond is sitting in a 12.0 kg turret on a horizontal surface. James has a mass of 78.0 kg. If he is being pulled to the right with a force of magnitude equal to 12.0 N and pulled to the left with a force of magnitude equal to 17.0 N, what is the magnitude and direction of Mr. Bond's acceleration?

The answer is supposed to be  5.56×10−2 m/s2,to the left..... I'm just having trouble finding the answer, so if y'all don't mind can you please explain it in the easiest way possible for me

Answer 1