A student solved the equation x+2(x+1)=17 below and showed their work in the table below.

Question

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 go from line 2 to 3

Subtraction Property of Equalities

Collect Like Terms

Distributive Property

Addition Property of Equalities

Answer 1

Collect Like Terms