Practice problem
Which of the following demonstrates the commutative property of addition?
a+b=b+aa+b=b+aa+b=b+a
a+c=b+ca+c=b+ca+c=b+c
a+b=a+ba+b=a+ba+b=a+b
a×b=b×aa\times b=b\times aa×b=b×a
Type a concept, like “slope” or “photosynthesis”.