Wiki User
∙ 14y agoIf you're talking about middle-school algebra, the answer is yes.
Wiki User
∙ 14y agoReplace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
you have to deduce the variable and evaluate the expression.
Evaluate using PEMDAS
Replace all the variables in the expression by their numerical values and calculate the result.
It is done by substituting the values of the variables in the expression and then hope that you are capable of evaluating the result.
Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
you have to deduce the variable and evaluate the expression.
Evaluate using PEMDAS
evaluate. : )
Replace all the variables in the expression by their numerical values and calculate the result.
It is done by substituting the values of the variables in the expression and then hope that you are capable of evaluating the result.
The idea is to replace any variables (if there are any) by their numerical values, then do all the calculations.
Simplifying an expression is getting rid of any brackets or parentheses, performing as many operations as you can - including combining like terms. To evaluate an expression you would substitute the numerical values of all the variables, carry out all the operations (addition, multiplication etc) in the expression to reach the answer - the numerical value of the expression.
To evaluate a variable expression, replace all the variables with numbers and simplify the resulting numerical expression. 3m for m = 9 3(9)=27
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
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 ExpressionTo 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=7.7Solved Example on Evaluating an Algebraic ExpressionEvaluate the algebraic expression p + 3q + 2p - 3q, for p = 2 and q = - 5.Choices:A. 12B. 18C. 3D. 6Correct Answer: DSolution: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.]
To find the value of an algebraic expression is to evaluate it.