Respuesta :

evanc7515

Answers:

Distributive Property

Addition Property of Equality

Division Property of Equality

Step-by-step explanation:

Let's solve this problem step-by step to see what we use to solve this.

Step 1: Distributive Property

3x - 9 = 12

Step 2: Addition Property of Equality

3x = 21

Step 3: Division Property of Equality

x = 7

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sarahISsmart

Distributive Property, Addition Property of Equality, Division Property of Equality

To solve this problem is to see what we have to  use to solve this.

First step: Distributive Property: 3x - 9 = 12

Second step: Addition Property of Equality: 3x = 21

Third step: Division Property of Equality: x = 7

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