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Only like terms can be subtracted or added in algebraic expressions.

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Q: How do you know if you will subtract or add in simplifying algebraic expressions?
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Why do you use letters in algebraic expressions?

the reason you use letters in algebraic expressions is because you don't know the number so a letter replaces it.


Why is it important to use order of operations to evaluate algebraic expressions?

I think it is important because you need to know it when you get older.


What is the meaning of variable in algebraic expression?

Variable is any letter used in an algebraic expression, and can vary (change form) to be any number, and one variable means the same number in any single algebraic expression. Usually algebra is simplifying the expression or equation until you know what the variable is equal to.


6 times the sum of 4 and y?

Algebraic expressions are useful for translating problems into the language of mathematics. An algebraic expression for the problem "6 times the sum of 4 and y" would be: 6(4+y) = 24 + 6y.


Why should you learn algebraic expressions?

Learning the expressions is the same thing as learning your multiplication tables - it helps you to understand algebra. And algebra allows you to understand things like logic, statistics, and all sorts of calculations where you don't know enough numbers to do a straight addition or multiplication or subtraction or division.


Why do you think it is important to know how to find the common denominator of two rational polynomials?

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What is an algebraic geometer?

An algebraic geometer is a mathematician who specializes in algebraic geometry.


What kind of algebra do you learn in seventh grade?

Normally you don't take algebra in 7th grade, but if you place into it you will learn things like slope, simplifying algebraic equations and so on. It is not the easiest thing to do as a seventh grades, as I would know, but it isn't REALLY hard. You just need to pay attention to your teacher.


How do you know if you have given your girlfriend an orgassim?

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What is value of an expression?

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How do you evaluate an algebraic expression when I know the value of each variable?

Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.


How do you know that unknown girl like you?

face expressions