👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common value of the variables that makes each equation in the system true. To solve a ...

Millions of high school and college algebra students are united in a shared agony over solving for x and y. For those to whom the answers don't come easily, it gets worse: Most preschoolers and ...

👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of ...

Simultaneous equations are two or more equations with two or more variables. They are simultaneous because they can be solved to give values for the variables that are equal in each equation. This is ...

All right, kids! Raise your hand if you like algebra! Hmmm. Now, raise your hands if you like Angry Birds! I see. What if I were to tell you that Angry Birds had been surpassed in the App Store — by a ...

Jesse Schell is, perhaps, the top educational game designer in the business right now. A few months ago I asked him what his favorite educational game was. After a brief pause, he replied, “DragonBox ...