Question

the correct answer will be mark as brainliest answer, answer must be with explanation please ​

Answer 1

Answer:

1. x+y = -2/3 + 1/3 = -1/3

y+x = 1/3 + -2/3 = -1/3

x+y = y+x

2. x+y = 4/5 + -7/2 = 3/10

y+x = -7/2 + 4/5 = 3/10