Question

please help
If x - 7 = 10, then x - 7 + 7 = 10 + 7.
This is an example of which property below?

Answer 1

look closely:

x - 7 = 10

then

x - 7 + 7 = 10 + 7

what do you think changed?

Answer 2

i know what changed i just dont know what property it is

Answer 3

if you know what changed...then you'll know what property it is....so if you don't know what property it is...that means you don't know what changed

so what changed?

Answer 4

is it the Commutative Property for Addition

Answer 5

do you know what changed or not?

Answer 6

yeah the 7 you add it to both sides

Answer 7

that's right. so if you add to both sides...it's called addition property

Answer 8

commutative property is this

a + b = b + a

Answer 9

commutative property is changing the order

Answer 10

oh okay i see thank you (:

Answer 11

welcome