In algebra, letters are used to stand for values that can change (variables) or for values that are not known (unknowns). A term is a number or letter on its own, or numbers and letters multiplied ...

Parsing algebraic expressions ... parse returns a full expression to produce: (2+(4*2)). If that was too fast, read the post which has a nice flowchart and an example step-by-step parse of 1+2-3*4 ...

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 ...