Three seventh of a number is 12 more than 40% of that…

Three seventh of a number is 12 more than 40% of that number. What will be the 10% of that number?

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 #3290