Respuesta :

AJ135
1/x + 5/9 = 7/9
1/x = 2/9
9/9x = 2x/9x
(9 + 2x)/9x = 0
2x - 9 = 0
2x = 9
x = 4.5
1/4.5 = 2/9 
The number is 4.5