Algebra and Graphs
Algebraic Manipulation and Representation
Introducing Algebraic language
Changing the Subject
Combining and Simplifying Algebraic Fractions
3 Laws of Indices
Equations and Inequalities
nth Term Rule
Graphs in Practical Situations
Difference Distance and Speed -Time graphs
Acceleration and Deceleration
Area under Speed-Time Graph
Graphs of Functions
Graphical Solution of Quadratic Functions
Gradient of a Curve
Graphical Solution of Equations
Inverse of Functions
For Geometry we study properties of points, lines, faces, shapes, angles etc. I explain all you need to know about Geometry to pass your IGCSE GCSE Maths exam on this website. Have a look at my selection of Geometry links below during your maths revision and prepare yourself for your maths exam. Let me know if you need more help with your maths. I will be glad to help you and answer your questions!
How to solve Simultaneous Equations
We can solve an equation with one unknown. By rearranging the equation 2x + 3 = 11 for instance, we are able to find the unique value of x for this equation to be true. Can we solve an equation with two unknowns? What are the unique values of x and y in the equation 2x + y = 7? When we have two unknowns/variables, we need two equations in order to find the variables' values. We have three strategies to do so successfully and you need to be able to use all three of them;
- the substitution
- the elimination method
- the graphical method.
I will explain all methods here to solve simultaneous equations. So continue with your maths revision and make sure to study all maths videos and example questions. Good luck and have fun!
Example questions how to solve Simultaneous Equations with the Elimination Method
There are several things you need to consider when applying the elimination method. Make sure therefore to look at all example questions which will study all those things you need to be aware of in order to be successful. Each video will contain something new for you to think about and understand. Remember, the best way to learn and understand maths is by solving these types of example questions. Good luck and have fun!
The Graphical Method: How to solve Simultaneous Equations
So far I have explained to you how to solve simultaneous equations by substitution and by using the elimination method. Finally I will teach you how to solve simultaneous equations by graphing the equations. Which method do you think is most accurate? Please share your thoughts on the forum of this website and start the discussion!
Example questions how to solve Simultaneous Equations with the Graphical Method
Solving a Past Paper Question about Vectors and Simultaneous Equations
Congratulations!! You now understand how to solve simultaneous equations! You have learned what the substitution and elimination method are and you understand how to solve simultaneous equations graphically. Continue with your maths revision and learn about how to solve inequalities. Do you approach them the same as equations? Find out by following the links. I will see you there!!