A student solved the equation x+2(x+1)=17

below and showed their work in the table below.

Problem x+2(x+1)=17
Line 1 x+2x+2=17
Line 2 3x+2=17
Line 3 3x=15
Line 4 x=5

Identify the property used to arrive at Line 2

Responses

Addition Property of Equalities
Addition Property of Equalities

Collect Like Terms
Collect Like Terms

Distributive Property
Distributive Property

Subtraction Property of Equalities
Subtraction Property of Equalities

2 answers

Distributive Property

wich line has a mistake ?