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.

B.J. Fogg, the founder of the Behavioral Design Lab at Stanford University and the author of “Tiny Habits: The Small Changes That Change Everything,” explained this concept to the New York Times. He ...