Solving Linear Equations

Key Words & Ideas

An equation is a maths statement with an equals sign "=" in it. In an equation the left hand side always has the same value as the right hand side.
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Parts of an equation
To solve means: work out the solution (answer) i.e. find the value that you could put in for x that would make the equation true.

When solving an equation we always do the same thing to both sides until we have "x = a number":
  • add or subtract the same thing from both sides
  • multiply or divide both sides by the same thing
  • square or square root both sides

Video examples

The video shows the examples in this area from a Junior Cert Higher Level Book.

Practice

Need more help? Remember 1st Year 

These four videos demonstrate how to solve linear equations starting with easy questions. 
These four videos below are worked solutions to questions that relate to the examples above.