Let X be the smallest positive integer such that 28 and 42…

Let X be the smallest positive integer such that 28 and 42 are factors of 678 - X, so the value of X is:

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 #5245