Variables
In this expression, the variables are x and y. We call these letters variables because the numbers they represent can varythat is, we can substitute one or more numbers for the letters in the expression. Coefficients Coefficients are the number part of the terms with variables. In 3x2 + 2y + 7xy + 5, the coefficient of the first term is 3. The words three times tell us the first term is a number multiplied by three. In this expression, we don't need a multiplication sign or parenthesis. Phrases like a number or the number tell us our expression has an unknown quantity, called a variable. In algebra, we use letters to represent variables. the product of a number and the same number less 3 x(x  3). The words the product of tell us we're going to multiply a number times the number less 3. We call these letters variables because the numbers they represent can varythat is, we can substitute one or more numbers for the letters in the expression. Coefficients Coefficients are the number part of the terms with variables. In 3x2 + 2y + 7xy + 5, the coefficient of the first term is 3. You can think of a factor as a number that divides another number with no remainder. For example, 3 is a factor of 6 since 3 goes into 6 two times with no remainder. Now i … f the factor is prime, then it is a prime factor. So in the example above, 3 is a prime factor. This is because the factor itself has only two factors, 1 and itself. 6 goes into itself also, but since 6 is not prime, it is not a prime factor. Now that you understand it, here is a more precise definition. In a mathematial equation the letters wither represent a variable or a constant. So in the example above, 3 is a prime factor. This is because the factor itself has only two factors, 1 and itself. 6 goes into itself also, but since 6 is not prime, it is not a prime factor. Now that you understand it, here is a more precise definition. the letters are used to represent numbers. they are called variables. so, when doing an algebraic questions, letters are used to represent the different numbers. usually, one does not know what the value is. · just now. Report Abuse. The letter that is given in the math problem is what you are usually solving for. Think of it as the missing number in an equation and we just decided that a or x was a good substitute for it until YOU can calculate what that number is. Cheer Letters in math/algebra are usually variables. A very simple variable equation is a+4 = 7 (or it could have been x+4=7 or any letter of the alphabet). · just now. Report Abuse. The letter that is given in the math problem is what you are usually solving for. Think of it as the missing number in an equation and we just decided that a or x was a good substitute for it until YOU can calculate what that number is. Cheers The word algebra is also used in certain specialized ways. A special kind of mathematical object in abstract algebra is called an algebra, and the word is used, for example, in the phrases linear algebra and algebraic topology. A mathematician who does research in algebra is called an algebraist. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. As such, it includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields. Home-Education Resources. Algebra. Algebra is a way of expressing mathematical equations using numbers, and letters and symbols called variables. For example, the equation below is used to show that the speed that something travels multiplied by the time that it travels will result in the distance traveled.  Report Abuse. Mathematics using only letters is usually referred to as symbolic mathematics. There are many different branches of maths that use symbols to represent concepts. Here are some examples: • Algebra uses variables for unknown values. • Geometry uses greek letters to represent types of angles and lengths. • Calculus uses many symbols and letters to represent functions and calculus processes (ie. the derivative, integral, gradient, etc). 
http://www.math.com/school/subject2/lessons/S2U1L1DP.html http://www.math.com/school/subject2/lessons/S2U1L1DP.html http://www.answers.com/Q/What_is_the_letter_in_a_term_in_math_called http://www.answers.com/Q/What_is_the_letter_in_a_term_in_math_called https://answers.yahoo.com/question/index?qid=20080812223145AAfnmcs https://answers.yahoo.com/question/index?qid=20080812223145AAfnmcs https://en.wikipedia.org/wiki/Algebra https://www.nde-ed.org/EducationResources/Math/Math-Algebra.htm https://answers.yahoo.com/question/index?qid=20090517170835AAaq3jE
what are the letters in algebra called