Question

Which property justifies this statement?

"If 7 = x + 4, then x + 4 = 7."
A.
commutative

B.
symmetric

C.
associative

D.
transitive

Answer 1

comm. --> a+b=b+a
asso. --> a+(b+c)= (a+b)+c
symm. --> a+b=c = c=a+b
trans. --> a=b b=c a=c
which one do u think is the right one? :)

Answer 2

@sjdk

Answer 3

thanks for the medal! :)