↑ Return to Algebra 1A

Print this Page

1 – Solving Basic Equations

  • What is the spark at the heart of algebra?
  • How does a welder know how much electrical current to apply to a new metal?
  • How does a musician change a song into a new key?
  • How does a diver calculate the amount of oxygen needed to go deeper than before?
  • They all use equations. Equations are mathematical ways to express relationships between quantities.
  • The power of equations is that they allow us to use symbols, called variables, to represent not only unknown amounts, but also those that can change or vary.
  • A variable can represent the speed of a bicycle, layers on a cake, or the average number of shoppers at a mall.
  • An equation can also contain more than one variable.
  • Suppose you want a new cellphone contract. How do you know which carrier will give you the best deal?
  • What are the variables to consider? How do they relate to one another? How could they change over time?
  • Whether you want to design a dress, race a car, or paint a mural, you need to understand equations.
  • In this unit, you’ll learn about the types of numbers used in basic equations, different ways to solve equations, and how to apply equations to solving real life problems.

Permanent link to this article: http://newvillagegirlsacademy.org/math/?page_id=162