Which of these is correct for the implicit method of solving pressure in the compressible flows?

Which of these is correct for the implicit method of solving pressure in the compressible flows? Correct Answer The Poisson equation and the momentum equation are solved simultaneously

In the implicit method, the values in the previous time steps are altered after moving to the next step. The Poisson equation and the momentum equation are solved simultaneously here. No time-advancement is done here.
Bissoy MCQ

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