Hi. First of all, thanks for your educating videos. I learned things that I needed to use in MATLAB by your teaching except one thing I haven't been able to find my way around it and it's using the solve function for a parameter in-between an equation. Can you teach me how to use solve function for finding I in the following equation? L_p=20log10(p/p_ref) where L_p & p_ref are 100 & 20e-6 respectively