Respuesta :

Step-by-step explanation:

line number                    Property

Line 1: (-7x+3)+2x            associative (gathering -7x and 3)

Line 2: (3+(-7x))+2x.        Commutative (change the positions of 3 and -7x)

Line 3: 3+(-7x+2x).          associatI’ve

Line 4: 3+(-5x)