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 ...

The unknown values in an equation could be the individual costs of a smoothie and a banana when the combined cost is known. Simultaneous equations can be useful when running a business. Watch the ...

Thirdly, variables are note-specific, meaning you can't use a variable declared in one note in another one. Fourthly, the variable names are also not case-sensitive. So, p is the same as P, and ...