IP EMaths Notes (Upper Sec, Year 3-4): 05) Simultaneous Equations and Word Problems
08 Nov 2025, 00:00 Z
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Q: What does IP EMaths Notes (Upper Sec, Year 3-4): 05) Simultaneous Equations and Word Problems cover?
A: Blend substitution and elimination to model two-variable contexts quickly and accurately.
Simultaneous equations convert real-world statements into solvable algebra. Choose the method - substitution, elimination, or graphical - that minimises manipulation.
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These notes align with SEAB GCE O-Level Mathematics (4052) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Mathematics 4052 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.
Strategy snapshot
- Rearrange one equation to make a variable the subject for substitution.
- In elimination, line up coefficients so one variable cancels cleanly.
- Always interpret the algebraic solution back in context to check feasibility.
Worked example - Ticket mix at a concert
Adult tickets cost and student tickets cost . At a weekend concert, tickets are sold for a total of
