GCSE Maths (Edexcel)

435 videos | 33 hours

Solving Linear Equations

Please subscribe to watch this video.

This, and all other videos, are included in our premium subscriptions.

Premium accounts get access to all videos.

Algebra Solving Equations and Inequalities

Solving Linear Equations

4:48 Linear Equations
Spec A17
Previous Defining Equations Next Solutions to Quadratic Equations
  • A linear equation involves only constants and variables with a power of one
  • The left and right hand expressions of a linear equation are only equal when the variable takes on specific values
  • Linear equations have the simplest form because they have one solution
  • The solution to a linear equation can be found by manipulating the equation to make the variable the subject
  • Linear equations can be solved graphically by plotting the left and right hand expressions and finding the intersection point
  • To solve a linear equation, you can add or subtract terms to isolate the variable, and then divide to find the solution
  • You can double check your solution by substituting it back into the equation
  • Even if a linear equation has brackets, it is still considered linear as long as the terms involving the variable have a power of one
  • To solve a linear equation with brackets, you can expand the bracket and then follow the same steps as before to isolate and solve for the variable.

Please subscribe to access these revision notes.

This, and all other video notes, are included in our premium subscriptions.

Premium accounts get access to all videos and revision notes.