Silgado-Tuñón DA, Barrios Mercado JC, Montelongo Aguilar O. Conceptual understanding of systems of Linear Equations in secondary education: a didactic proposal using GeoGebra. AmazInv [Internet]. 2026 Jun. 30 [cited 2026 Aug. 2];15(87):93-105. Available from: https://www.amazoniainvestiga.info/index.php/amazonia/article/view/2968