Question

To simplify a given expression, a student followed the steps below. Which property was applied in line 1?

Line 1: -3 (9 + 5) + 7 = (-3 * 9) + (-3 * 5) + 7
Line 2: = -27 + -15 + 7
Line 3: = - 42 + 7
Line 4: = -34


Commutative Property of Addition

Addition Property of Equality

Distributive Property

Commutative Property of Multiplication

Answer 1

A

Answer 2

thank you sooooo much!

Answer 3

medal??