Campanilla N. Integrating Variable to Enhance Problem-Solving Skills of Grade 7 Students in Linear Equations and Inequalities. Int. Multidiscip. J. Res. Innov. Sustain. Excell. [Internet]. 2024 Dec. 18 [cited 2026 Aug. 25];1(12):190-7. Available from: https://risejournals.org/index.php/imjrise/article/view/893