Commutative law of addition is

a + b = b - a

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a + b = b + a

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a b = b a

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a - b = b + a

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Solution

The correct option is B $a + b = b + a$
For rational numbers, addition and multiplication are commutative.
Commutative law of addition is a+b = b+a
Commutative law of multiplication is $a \times b = b \times a$

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Similar questions

(Commultative laws) For any two sets a and B, prove that:
$I . A \cup B = B \cup A$ [Commutative law for union of sets]

$I I . A \cap B = B \cap A$ [Commutative law for intersection of sets]

	Column-I		Column-II
(i)	a + b = b + a	(a)	Distributivity of multiplication
(ii)	(a + b) + c = a + (b + c)	(b)	Commutativity under addition
(iii)	a x (b + c) = a x b + a x c	(c)	Associativity of addition
		(d)	Commutativity under multiplication

The law a + b = b + a is called

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