Question

Which property is used in 2 + (–4) = (–4) + 2

Answer 1

Commutative Property under addition :

If a , b € Z ,

a + b = b + a

Here , a = 2 , b = -4 ,

LHS = 2 + ( - 4 ) = -2

RHS = (-4) + 2 = -2

Therefore.,

2 + ( - 4 ) = ( - 4 ) + 2

(Commutative Property under addition)

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