# Substitution Of Variables Help : Videos | Worksheets | Word Problems

Many students find substitution of variables difficult. At TuLyn, we have hundreds of free substitution of variables video tutorials, printable substitution of variables worksheets, and substitution of variables word problems to help you better understand substitution of variables and get better grades.

# Substitution Of Variables

In mathematics, substitution of variables (also called variable substitution or coordinate transformation) refers to the substitution of certain variables with other variables. Though the study of how variable substitutions affect a certain problem can be interesting in itself, they are often used when solving mathematical or physical problems, as the correct substitution may greatly simplify a problem which is hard to solve in the original variables. Under certain conditions the solution to the original problem can be recovered by back-substitution (inverting the substitution).

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At TuLyn, we have over 2000 math video tutorial clips including substitution of variables videos, substitution of variables practice word problems, substitution of variables questions and answers, and substitution of variables worksheets.

Our substitution of variables videos replace text-based tutorials and give you better step-by-step explanations of substitution of variables. Watch each video repeatedly until you understand how to approach substitution of variables problems and how to solve them.
• Hundreds of video tutorials on substitution of variables make it easy for you to better understand the concept.
• Hundreds of word problems on substitution of variables give you all the practice you need.
• Hundreds of printable worksheets on substitution of variables let you practice what you have learned by watching the video tutorials.
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# Evaluating Expressions By Substitution Of Variables Using Order Of Operations Video Clip

Evaluating Expressions By Substitution Of Variables Using Order Of Operations
Video Clip Length: 2 minutes 12 seconds
Video Clip Views: 27682

arithmetic operations, evaluating expressions, expressions, operations, order of operations, substitution, substitution of variables, variables

# Evaluating Expressions By Substitution Of Variables Using Order Of Operations 2 Video Clip

Evaluating Expressions By Substitution Of Variables Using Order Of Operations 2
Video Clip Length: 1 minute 39 seconds
Video Clip Views: 27571

arithmetic operations, evaluating expressions, expressions, operations, order of operations, substitution, substitution of variables, variables

# Evaluating Expressions With Parentheses And Exponents Using Substitution Of Variables 2 Video Clip

Evaluating Expressions With Parentheses And Exponents Using Substitution Of Variables 2
Video Clip Length: 4 minutes 9 seconds
Video Clip Views: 22441

This tutorial will show you how to evaluate expressions when given values for the variables.  We use the distributive property to multiply a coefficient by the given binomial.  We also are showing you how to use the order of operations, by handling parentheses, then multiplication followed by addition next.

evaluating expressions, exponents, expressions, substitution, substitution of variables, variables

# Evaluating Expressions With Exponents Using Division Using Substitution Of Variables Video Clip

Evaluating Expressions With Exponents Using Division Using Substitution Of Variables
Video Clip Length: 3 minutes 38 seconds
Video Clip Views: 20972

This tutorial will show you how to evaluate a given expression using the order of operations, PEMDAS.  You will be substituting values and learning how to raise a value to a power and decide on which operation to use first in the expression.

arithmetic operations, evaluating expressions, exponents, expressions, operations, substitution, substitution of variables, variables

# Evaluating Expressions With Exponents Using Substitution Of Variables 2 Video Clip

Evaluating Expressions With Exponents Using Substitution Of Variables 2
Video Clip Length: 2 minutes 41 seconds
Video Clip Views: 14332

This tutorial will be able to help you with evaluating expressions when given values.  You will be to substitute variables in your expressions by using the order of operations.

arithmetic operations, evaluating expressions, exponents, expressions, operations, substitution, substitution of variables, variables

# Evaluating Expressions By Substitution Of Variables Video Clip

Evaluating Expressions By Substitution Of Variables
Video Clip Length: 2 minutes 28 seconds
Video Clip Views: 12577

evaluating expressions, expressions, substitution, substitution of variables, variables

# Evaluating Expressions With Exponents Using Substitution Of Variables Video Clip

Evaluating Expressions With Exponents Using Substitution Of Variables
Video Clip Length: 10 minutes 35 seconds
Video Clip Views: 11093

This tutorial will be able to show evaluate expressions when given values.  You will need to use substitute the given values for expand the exponent notation.  You learn how to find a product of a given expression.

evaluating expressions, exponents, expressions, product, substitution, substitution of variables, variables

# Evaluating Expressions With Exponents Using Substitution Of Variables 4 Video Clip

Evaluating Expressions With Exponents Using Substitution Of Variables 4
Video Clip Length: 2 minutes 52 seconds
Video Clip Views: 10939

This tutorial will be able to help you evaluate the expression when given the values for each variable.  You will learn how to substitute your variables and how to keep the operations although if not shown in order to find the solution to the expression.   We also observe the order of operations, because we multiply first and then we subtract.

evaluating expressions, exponents, expressions, substitution, substitution of variables, variables

# Evaluating Expressions With Parentheses And Exponents Using Substitution Of Variables Video Clip

Evaluating Expressions With Parentheses And Exponents Using Substitution Of Variables
Video Clip Length: 6 minutes 60 seconds
Video Clip Views: 10847

This tutorial will show you how to evaluate expressions when given values for the variables.  You will learn how to substitute given values into expressions as well as how to perform operations using the order of operations, where you handle parentheses first, then work with exponents next.

evaluating expressions, exponents, expressions, substitution, substitution of variables, variables

# Evaluating Expressions With Exponents Using Substitution Of Variables 3 Video Clip

Evaluating Expressions With Exponents Using Substitution Of Variables 3
Video Clip Length: 1 minute 2 seconds
Video Clip Views: 10192

This tutorial will help you evaluate expressions in the given expression.  You will substitute the given values in the variables inside the expression.  You need to replace the variables in order to get the final sum.

evaluating expressions, exponents, expressions, substitution, substitution of variables, variables

# Post a homework question on substitution of variables:

How many legs in total do a chicken, a duck, and a sheep have?

### Substitution

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### Variables

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