Question

if x=(-23)+22+(-23)+22+....(40 times)and y=11+(-10)+11+(-10).....(20 times) so find y+x​

Answer 1

Step-by-step explanation:

x=40(23-22)=40

y=20(11-10)=20

x+y=60

Answer 2

Answer:

x+y=-20

Step-by-step explanation:

x=40[(-23)+22]

x=40(-23+22)

x=40(-1)

x=-40

y=20[11+(-10)]

y=20(11-10)

y=20(1)

y=20

x+y=-40+20

x+y=-20