When x + p is divided by p + 1, the quotient…

When x + p is divided by p + 1, the quotient is n and there is no remainder. Which of the following must be the value of x?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #47488