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 ...

Algebra is used in Maths when we do not know the exact number(s) in a calculation. In algebra we use letters to represent unknown values or values that can change. Algebra can be used in business ...