1. The problem statement, all variables and given/known data Design an op-amp circuit that can perform the operation:Vo = 12VS1+3VS2, while simultaneously presenting an input resistance of 50 kΩ on the input side for source VS1 and an input resistance of 25 kΩ on the input side for source VS2. 2. Relevant equations 3. The attempt at a solution I am looking at Op-Amp gains, and I cannot find a model that will produce this output. A summation amplifier won't do it, nor a difference amplifier. What kind of model should I use?