+0

# Which property is not used

0
89
1

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

distributive property

Guest Dec 6, 2017

#1
+6262
+1

(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.

hectictar  Dec 7, 2017
Sort:

#1
+6262
+1

(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.

hectictar  Dec 7, 2017

### 18 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details