GCSE Maths - How to Solve Simultaneous Equations - Using the Elimination Technique
Cognito
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*** WHAT'S COVERED ***
1. Introduction to simultaneous linear equations.
2. The Elimination Method for solving simultaneous equations.
3. Worked Examples.
*** EXAM BOARD INFO ***
This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - All on your course
*** CHAPTERS ***
0:00 Intro to Solving Simultaneous Equations
0:13 What are Simultaneous Equations?
0:51 The Elimination Method - Basic Idea
1:10 Example 1 (Simple)
3:55 Example 2 (More Complex)
4:05 The Steps for Elimination
4:23 Step 1: Label and Rearrange Equations
5:06 Step 2: Make Coefficients the Same (Multiplying an Equation)
5:39 Step 3: Eliminate a Variable (Subtracting Equations)
6:21 Step 4: Solve for the Remaining Variable (y)
6:31 Step 5: Substitute to Find the Other Variable (x)
7:05 Step 6: Check the Solution for Example 2
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