The number N is 5,1H4, where H represents the ten's digit

The number N is 5,1H4, where H represents the ten's digit. If N is divisible by 9, what is the value of H?

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 #45199