Question

Please help! 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?

Answer 1

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