The unknown on both sides of a storyLesson 171 of the lessons course of Mova's primary school: 3 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0).0Sometimes the unknown number appears twice: 3 bags and 5 more weigh as much as 1 bag and 21 more.1Take the same from both sides, like on a balance: take 1 bag away from each side, then 5 from each side.2What is left says 2 bags = 21 - 5 = 16, so one bag is 16 / 2 = 8.← previousThe dog that runs back and forthnext →Working backwards through three steps↑ back to LessonsThis page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/lessons/171-unknown-on-both-sides/