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7.2: Systems Using Substitution

Difficulty Level: Basic Created by: CK-12
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Vocabulary

Substitution Property of Equality

Substitution Property of Equality

If y= an algebraic expression, then the algebraic expression can be substituted for any y in an equation or an inequality.
Consistent

Consistent

A system of equations is consistent if it has at least one solution.
distributive property

distributive property

The distributive property states that the product of an expression and a sum is equal to the sum of the products of the expression and each term in the sum. For example, a(b + c) = ab + ac.
linear equation

linear equation

A linear equation is an equation between two variables that produces a straight line when graphed.
substitute

substitute

In algebra, to substitute means to replace a variable or term with a specific value.

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Difficulty Level:

Basic

Grades:

8 , 9

Date Created:

Feb 24, 2012

Last Modified:

Feb 26, 2015
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