Mahmood786123 Mahmood786123

02-04-2015
Mathematics

contestada

Which property justifies this statement?

If x + y = z and z = x + 4, then x + y = x + 4.

A.
symmetric

B.
associative

C.
distributive

D.
transitive

Respuesta :

Hippalectryon Hippalectryon

02-04-2015

Reminder :
symmetry -> a+b=b+a
association -> (a+b)+c=a+(b+c)
distribution -> a(b+c)=ab+ac
transitivity -> a=X and b=X => a=b

Hence it's D : transitive

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