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

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Q: Why do you use letters in algebraic expressions?
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Related questions

How will you simplify algebraic expressions?

use a calculator


What is the difference between algebraic and numerical expressions?

Algebraic expressions use letters as variables to represent numbers. Ex. 5c-(2+x) x=2 c=12 Numerical expressions use numbers only. Ex. 12+(2-7)


How do you use substitution to evaluate algebraic expressions?

by farting


How are numerical expressions and algebraic expressions similar?

They both use PEMDAS or Order of Operation


Write one numerical expression and one algebraic expression then explain the difference between a numerical and algebraic expression is?

Numerical Expression: 1.) 20+2-8 ( Or any other number with two symbols on math ) Algebraic Expression: 2.) h x 2 ( Or any other number using only one symbol an a letter ) The difference between a numerical and algebraic expressions is that numerical expressions use only numbers, but algebraic expressions use letters as variables to represent numbers.


What are some jobs that use algebraic expressions?

A math teacher!


Do algebraic expressions have equals signs?

no algebraic expressions do not have equal signs but equations do.


How do you classify algebraic expressions?

Algebraic expressions are terms that do not include an equality sign


How are algebraic expressions and equations alike?

Algebraic expressions are the written relations of or between variables. For example, x2, 1/x, and x + y + z are all algebraic expressions. Algebraic equations are simply algebraic expressions that equate to something. For example, x2 = 4, 1/x = y, and x + y + z = 42 are all algebraic equations. In general, one differentiates algebraic expressions from exponential, trigonometric, hyperbolic, and logarithmic expressions by requiring algebraic expressions to be confined to polynomial expressions. I've added a link regarding polynomials below.


Problems in algebraic expressions?

x+x use inverse operations


How do you know if you will subtract or add in simplifying algebraic expressions?

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


What is the word origin for algebraic expressions?

the word algebraic is arabic.