PPT lesson summary · Foundation PPT · CIE Core

Simultaneous Equations PPT lesson summary

Simultaneous Equations PPT lesson — Foundation (CIE Core). These slides walk a lower-secondary class through the key ideas with diagrams and worked examples on screen. This page summarises the teaching points for search and revision; download the PowerPoint for the full lesson, and use the companion worksheet and answers PDFs for independent practice.

Download Simultaneous Equations PowerPoint Open Learning Sheet — Simultaneous Equations Download Simultaneous Equations answers PDF

Files: foundation-slides-01M65KZRZ8WJTPPPT4HSE8DN63.pptx · foundation-30 Simultaneous Equations handout.pdf · foundation-30 Simultaneous Equations handout answers.pdf · free public downloads · diagrams on the slides

Key learning points

Elimination: make one coefficient match, then add/subtract.
Substitution: rearrange one equation and replace in the other.
Graphically: intersection of two lines.

Worked example 1 — Elimination

Solve $x+y=7$ , $x-y=1$ .

Working

x=4,\ y=3

Add to eliminate $y$ .

Worked example 2 — Substitution

Solve $y=2x+1$ , $x+y=7$ .

Working

x=2,\ y=5

Substitute for $y$ .

Worked example 3 — Scaled elimination

Solve $2x+3y=12$ , $x+y=5$ .

Working

x=3,\ y=2

Match coefficients, then subtract.

Full slides and practice PDFs

This page is a short, searchable overview of the PPT lesson for revision and search engines. Download the PowerPoint for classroom teaching, then use the companion worksheet and answers when available.

PowerPoint / slides Open Learning Sheet Answers PDF

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