We have changed our privacy policy. In addition, we use cookies on our website for various purposes. By continuing on our website, you consent to our use of cookies. You can learn about our practices by reading our privacy policy.
© 2016 Shmoop University, Inc. All rights reserved.
Systems of Linear Equations

Systems of Linear Equations

In the Real World


Systems of equations can be amazingly useful. How else would you figure out how many ounces of 70% dark chocolate and 20% milk chocolate you need to mix to get one pound (16 oz) of 40% chocolate? We forgot to mention: the meaning of life involves mixing chocolate. There. Now you know.

While problems with two unknowns may seem impossible to solve at first, we can use a system of equations to organize our information, then use one of our three methods to solve the system and find the answer. Oh, organization. You're a cure for all ills.

This idea becomes even more useful when we allow the systems of equations to have more unknowns and more equations. Then we can solve for 3 things at once. Or 4, or 5, or 6. Not 7, though. Certainly not 7. All right, let's throw 7 into the mix.

People who Shmooped this also Shmooped...

Advertisement