Question

verify x+(y+z)=(x+y)+z for x= 3/5 y= -13/15 z =-7/3​

Answer 1

Answer:

I don't know this answer

Answer 2

Answer:

<=>3/5+(-13/15-7/3)=(3/5-13/15)-7/3

<=>3/5+(-13-21/15)=(9-13/15)-7/3

<=>3/5-34/15=-4/5-7/3

<=>9-34/15=-4-21/15

<=>-25/15=-25/15

<=>25/15