Question

Margaret is solving the linear equation 3(x+4)=42 . As she was solving, she took the equation 3(x+4)=42 , performed an algebraic operation and ended up with 3x+12=42 . Which algebraic property justifies this operation?

A) Multiplication Property of Equality
B) Division Property of Equality
C) Associative Property
D) Distributive Property

Answer 1

D

Explanation:

The parenthesis was distributed in order to get 3x + 12

Answer 2

D) Distributive Property

Explanation:

3×x=3x

3×4=12

3x+12=42