Working with multi-variable expressions is a key concept in algebra that involves manipulating expressions containing two or more variables. This video offers a detailed guide on understanding and ...

In algebra, letters are used to stand for values that can change (variables) or for values that aren’t known (unknowns). A term is a combination of letters and/or numbers, often multiplied together, ...

In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...