Which property is not used to simplify the following expression?
(x+2)⋅5−7=5(x+2)−7
=(5x+10)−7
=5x+(10−7)
=5x+3
commutative property of multiplication
commutative property of addition
associative property of addition
distributive property
+9491 (x + 2)⋅5 − 7
= 5(x + 2) − 7 by the commutative property of multiplication
= (5x + 10) − 7 by the distributive property
= 5x + (10 − 7) by the associative property of addition
= 5x + 3 just because 10 - 7 = 3
So the commutative property of addition is not used.
