Question

Fill in the missing work and justification for step 2 when solving 3(x + 2) = 12.

Step Work Justification
1 3(x + 2) = 12 Given
2
3 3x + 6 − 6 = 12 − 6 Subtraction Property of Equality
4 3x = 6 Simplify
5 Three times x over three equals six over three Division Property of Equality
6 x = 2 Simplify


3x + 6 = 12; Distributive Property
3x + 2 = 12; Distributive Property
3x + 6 = 12; Multiplication Property of Equality
3x + 2 = 12; Multiplication Property of Equality

Answer 1

• 3x + 6 = 12; Distributive Property

Explanation:

• 3(x + 2) = 12

The next step is:

• 3*x + 3*2 = 12
• 3x + 6 = 12

This is a distributive property

Correct choice is A