With this example, it will insert the value "21," the equation's solution, into cell A1. Repeat the previous steps with each of the equations you want to solve.

Gaussian Elimination The general procedure learned to solve a system of linear equations is Gaussian elimination. The goal is to apply row operations to "eliminate" all the variables except for one in ...

Solving an equation means finding the value or values for which the two expressions on each side of the equals sign are equal. One of the most common methods used to solve equations is the balance ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Learn how to solve equations with brackets with this BBC Bitesize Maths article. For students between the ages of 11 and 14.