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To evaluate an algebraic expression means to simplify the expression as much as possible by replacing the variables in an expression with the numerical values given to you.

Ex:

Example of Evaluating an Algebraic Expression

- To evaluate the algebraic expression '4.5 + x' for x = 3.2, we need to replace x with 3.2 and then add.
4.5 + x = 4.5 + 3.2

=7.7

Solved Example on Evaluating an Algebraic Expression

Evaluate the algebraic expression p + 3q + 2p - 3q, for p = 2 and q = - 5.

Choices:

A. 12

B. 18

C. 3

D. 6

Correct Answer: D

Solution:

Step 1: p + 3q + 2p - 3q [Original expression.]

Step 2: = (p + 2p) + (3q - 3q) [Group the like terms together.]

Step 3: = 3p [Solve within the grouping symbols.]

Step 4: = 3 x 2 [Substitute 2 for p.]

Step 5: = 6 [Multiply.]

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Q: What does it you to evaluate an algebraic expression?

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

utujaj

you have to deduce the variable and evaluate the expression.

Evaluate using PEMDAS

Related questions

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

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

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

A variable

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.

utujaj

you have to deduce the variable and evaluate the expression.

Evaluate using PEMDAS

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.

evaluate. : )

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.

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

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