Question

M= {5; x+ y} N= {x - y; 13 }​

Answer 1

son iguales:
5=x-y
13=x+y

2x=18
x=9

9-y=5

y=4

-----

5y-x

5(4)-9

20-9

11
...........

x/3+y/2+20/y

9/3+4/2+20/4

3+2+5

10

..........

√yx + √x + √y

√49 + √9 + √4

7+3+2

12