13 2dLhtweht and easy to use so you can focus on animating and not what button to hit next. Seamlessly switch between raster and vector workflows, allowing you to sketch, ink &On putting A=0 and B=13, we can get 13. On putting D=0 and B=13 in eqn (2), we can still get 13. Thus, we can say that the value of D cannot be determed from the given data.