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You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.

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Q: How do you evaluate an algebraic expression?
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Related questions

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.


What is it called to find the value of an algebraic expression?

To find the value of an algebraic expression is to evaluate it.


What is it to find the value of an algebraic expression?

to simplify!!* * * * *No. It is to EVALUATE.


What do you need to be given to evaluate an algebraic expression?

A variable


What does it mean to evaluate an algebraic expression?

meaning to evaluate the variable in an expression. An algebraic expression is also a problem that contains no equals sign and you don't solve it, rather you simplify it.It means to solve something.


How do you evaluate an algebraic expression such as 7 plus d?

utujaj


How do you find a specific numerical value for an algebraic expression?

you have to deduce the variable and evaluate the expression.


To find the value of a numerical of algebraic expression?

Evaluate using PEMDAS


To find the value of a numerical or algebraic expression what word goes to this definnation?

evaluate. : )


How do you evaluate a math expression?

The evaluate a algebraic math expression you first must substitute a number for each variable. Then you must perform the operation in the correct order.


What is used to evaluate an algebraic expression for a specific value?

It is done by substituting the values of the variables in the expression and then hope that you are capable of evaluating the result.


How would you evaluate the expression 3x-4y equals 9 when x equals 2 and y equals 5?

explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?