Math, asked by Geffery, 7 months ago

Find the missing rational number A and mention which property of rational numbers can be used.

−215+721=A+−215-215+721=A+-215

721721; Closure property

−215-215; Commutative property

721721; Commutative property

−215-215; Associative property

Answers

Answered by srishtinick

0

Answer:

721721,closure property

Answered by kumarsanthosh29

0

Answer:

Closure property

Step-by-step explanation:

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