Respuesta :

Sriju

Answer:

1

Step-by-step explanation:

let us form the equation first;

let the number be x

1st :

5*x + 7= 5x + 7

2nd:

9*x + 3= 9x + 3

equating:

5x + 7 = 9x + 3

7-3 = 9x - 5x

4 = 4x

4/4 = x

1 = x