Question

What's 6+□=3+□ please help me I really need the answer

Answer 1

6+3 = 3+6 is your answer

Answer 2

6 + 0 = 3 +3

or

6 + (-1) = 3 + 2

or

6 + (-2) = 3 + 1

or

6 + (-3) = 3 + 0

or

6 + (-4) = 3 + (-1)

or 

6 + (-5) = 3 + (-2)

or

6 + (-6) = 3 + (-3)