Respuestas

  • Usuario de Brainly
2013-03-28T23:37:58+01:00

x+y=64

x/4-y/9=3

x=4(3+y/9)

x=12+4y/9

12+4y/9+y=64

4y/9+y=52

4y+9y=468

13y=468

y=468/13=36

 

x=64-36

x=28

y=36