An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra ... one letter. To solve an equation we use the inverse operations to undo the equation ...

An algebraic equation contains one or more letters in it ... The value that works is called the solution. STEP 1 - Write out the problem. In this case 3 hats and 1 scarf costs £17.

A simple brainteaser that tests your math and pattern ... The first step in getting to the bottom of the baffling equations ...