Complex numbers are used in electronics to describe the current in an electric circuit. Ohm's law relates the current in a circuit, I, in amperes, the voltage of the voltage of the circuit, E, in volts, and the resistance of the circuit, R, in ohm's, by the formula E = IR. Find E, the voltage of a circuit if I = (8-3i) amperes and R=(6+7i) ohms.