Two wires are running vertically along your screen. The wire on the left carries a current of 4A, whereas the wire on the right carries a current of 7.6A. Both currents flow upwards. A point M is located in between the two wires, a distance 9.4 cm from the left wire, and 7.1 cm from the right wire. What is the magnetic field at point M? Express your answer in microTeslas (T) and keep three significant digits. Count as positive a magnetic field pointing out of the screen and negative a magnetic field pointing into the screen