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# Checking Solutions to Equations

## Substitute values for variables to check equation solutions

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Checking Solutions to Equations

by CK-12 //at grade

Verify that solutions to algebraic equations are correct.

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## Evaluating Algebraic Expressions and Equations

by CK-12 //at grade

This lesson covers solving expressions or equations for a given value.

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• PLIX

## Checking Solutions to Equations: Taxi Cab Calculations

by CK-12 //at grade

Checking Solutions to Equations Interactive

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• Video

## Variables Expressions and Equations

by CK-12 //at grade

Introduces the idea of variable in expressions and equations.

0
• Video

## Check Solutions to Equations: A Sample Application

by CK-12 //at grade

This video demonstrates a sample use of the principles of checking solutions to equations.

0
• Video

## Check Solutions to Equations: An Explanation of the Concept

by CK-12 //at grade

This video provides an explanation of the concept of checking solutions to equations.

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• 0
• Real World Application

## Is It a Bear or a Bull?

by CK-12 //at grade

Find out what a company needs to do to attract investors.

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