This tutorials runs through an example with a Current Controlled Voltage Source (a dependent power source). We start by finding the controlling current, and then using that to calculate the dependent voltage of the dependent power source. From there, we go through the rest of the circuit, finding the voltage drop across every element, and the current and power delivery/dissipation in every element. The best way to solve this problem in particular is with Mesh Analysis. The acronym for a voltage controlled voltage source is CCVS.