Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

An equation is a mathematical statement showing that two expressions are equal. The two expressions are linked with an equals symbol (=). The unknown variable (often the letter \(x\)) can take any ...

What you think is important, but what you do matters more. This simple formula describes the best way to change your ...

Some equations include a set of brackets. When solving equations with brackets the first step is to expand the brackets. Simplify close simplify (equation)An equation can be simplified so it is ...