Justify Step 3 of the Solution $x + 7 = 6$

question 80

Multiple Choice

Justify step 3 of the solution. $x + 7 = 6$ Original equation $( x + 7 ) + ( - 7 ) = 6 + ( - 7 )$ Step 1 $x + [ 7 + ( - 7 ) ] = 6 - 7$ Step 2 $x + 0 = - 1$ Step 3 x=-1 Step 4

• A)Associative Property of Addition
• B)Additive Inverse Property
• C)Addition Property of Equality
• D)Additive Identity Property
• E)Cancellation Property of Multiplication

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Definitions:

Conservation

The protection, preservation, management, or restoration of natural environments, ecosystems, vegetation, and wildlife.

Earth Day

An annual event conceived of by environmental activist and former senator Gaylord Nelson to encourage support for and increase awareness of environmental concerns; first celebrated on April 22, 1970.

Environmental Activist

An individual who actively promotes the protection and preservation of the environment through various actions and advocacy.

Gaylord Nelson

An American politician and environmentalist who founded Earth Day, which helped spark the modern environmental movement.