Analyze the equation below and answer the question that follows. x + 17 = 37 which property is included in the justification for the steps used to solve the equation?

So were have associative, commutative, and distributive
we won't use distributive because not multiplication
asssociative is a+(b+c)=(a+b)+c
commutative=a+b=b+a

I'm  guessing commutative
split up 37 into 17 and 20

x+17=17+20
subtract 17 from both sides
x=20

Delta airlines or untied airlines