0
When you replace the variable with a number and perform the operations you blank an expression?
Wiki User
∙ 11y ago
evaluate.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How do you evaluate an expression with more than two operation symbol without exponent and parenthesis?
In Evaluating Expression first,replace each letter in the expression with the assigned value. second,perform the operations in the expression using the correct order of operations and the last you got the answer
What do you call replacing a variable in an in a algebraic expression with a quantiy?
When you replace a variable with a quantity, it is called a substitution.
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
What does the value of an expression mean?
If you replace variables in an expression by numbers (in case there are any variables) and then do the indicated operations, you get a number. That final number is the "value" of the expression.
What is a number that can replace a variable to make an equation true?
solution
What is to substitute for a variable and perform the given operations?
that means to replace the variable with it's value, and then do all the mathematical symbols as normal (+-x/)
How do you evaluate an expression when given values for the variables?
You replace each variable by its value. Then you do the indicated calculations.
How do you evaluate an expression with more than two operation symbol without exponent and parenthesis?
In Evaluating Expression first,replace each letter in the expression with the assigned value. second,perform the operations in the expression using the correct order of operations and the last you got the answer
What is the meaning of evaluate in maths?
to evaluate an algebraci expression replace ech variable with a number. then follow the order of operations to dimply the expressio. Hope that helped :)
To solve a system of equations you cannot replace a variable with an equal value or expression?
You can replace a variable with an equal value or expression. Just make sure the same variable always gets the same value or expression.
What is to replace a variable with a number or anotherexpression in an expression?
The term for replacing a variable with another value or expression is "substitution."
Is the set of numbers that can replace the variable in an algebraic expression.?
It is the domain of the expression.
How do you do evaluate expression?
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.
How do you find the value of an algebraic expression?
Take the value of each variable in the expression and replace the variable by its value. Then do the math!
What does it mean to evalutate the expression?
Replace each variable in the expression by its value and then find the value of the expression.
What do you call replacing a variable in an in a algebraic expression with a quantiy?
When you replace a variable with a quantity, it is called a substitution.
What is it called when you replace a variable with a number and follow order of operations?
Substitution
