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Dvinal [7]
2 years ago
5

Which property was used to simplify the expression?

Mathematics
1 answer:
scoundrel [369]2 years ago
4 0

The change that happened from the first half of the equation to the second half was you moved the 9 and the 4c around.

Commutative property of addition allows you to do that. It's what says that 2+3 is the same thing as 3+2

Hope this helps you

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