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Replacing each variable with a number in an expression and simplifying the result?
Wiki User
∙ 11y ago
Evaluate
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∙ 11y ago
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What is an expression that contains a variable a number and at least one operation?
That looks like the description of an EXPRESSION. However, an expression need not have "at least one operation"; a single number, or variable, is a perfectly valid expression.
What is the algebraic expression for 12 divided by a number?
You have to assign some variable to "some number", for example "x". Then your expression becomes 12 / x.You have to assign some variable to "some number", for example "x". Then your expression becomes 12 / x.You have to assign some variable to "some number", for example "x". Then your expression becomes 12 / x.You have to assign some variable to "some number", for example "x". Then your expression becomes 12 / x.
Does a variable expression consists only of numbers?
An algebraic expression can have a mixture of numbers and variables, but it does not contain an equals sign.
What would the variable expression be for double a number f?
2f
Which is the variable expression for Seventeen decreased by a number y?
17 - y
What do you call replacing a variable in an expression by a number and simplifying the result?
That is called 'solving'.
To find the value of an algebraic expression by substituting a number for each variable and simplifying?
322
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."
What is replacing each variable with a number in an expression and simpiifying the result?
Evaluating the expression.
What is replacing a variable in an expression with a number value called?
Substituting.
What is the meaning of variable in algebraic expression?
Variable is any letter used in an algebraic expression, and can vary (change form) to be any number, and one variable means the same number in any single algebraic expression. Usually algebra is simplifying the expression or equation until you know what the variable is equal to.
What is replacing each variable in an expression by a number and calculating the answer?
That is sometimes known as EVALUATING the expression.
To find the value of an algebraic expression by subsituting a number for each variable and simplifying?
And the question is ...
What is an algebraic expression by replacing each variable with a given number and performing all operations?
It is called evaluating the equation.
How do you find the value of an algebraic expression by substituting a number for each variable and simplifying?
The answer to the question is given in the question!If you want to find the value of an algebraic expression, then you need to substitute numerical values for each of the variables in the expression, and then calculate and simplify the result.
Why replacing variable for a number in an expression or equation is called substituting?
Because you are substituting a number for a variable. Like substituting salt for sugar in a cake recipe. Although you really shouldn't do the latter.
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
