Question

Please answer fast..I will mark right answer as brainliest..​

Answer 1

Answer:

.

Step-by-step explanation:

I hope you got it

Answer 2

Step-by-step explanation:

ab+bc+cd+de+ae=21

by putting values

3+x-y+x+y+x-y+3=21 (x+y=5)

9+2x-2y=21

2(x-y)=12

x-y=6

andx+y=5orx=5-y

so5-y-y=6

5-2y=6

y=-1/2

x=11/2