Algebra

Dear alien,
Algebra is important for our life. You can solving equations with it. Algebra basically is the mathematics of working with variables. With variable that is a quantity can change or that may take on different values. Variable refers to letters or symbols representing such a quantity. With equation you can solving the things you missed, for instant you have five apples, and you sold some, but you don’t know how many apples you sold, but the things you know is you have now two apples, and you need to know how many apples you bought that will simply do it in equation, and we put the total number we had, and it’s five then we subtract it by variable and we make it by (X) symbol, and they will equal two the formula we had will be (5-X=2).