Question

please help. it's argent. then I follow you and thank. ​

Answer 1

Step-by-step explanation:

x+y=20

x+3=18

x=18-3

x=15

15+y=20

y=20-15

y=5

Answer 2

Answer:

x+y=20

x+3=18

x=18-3

x=15

15+y=20

y=20-15

y=5

so, x = 15 & y = 5