Respuesta :

Answer:  1/6

Explanation:

x = the unknown number

19x = the product of 19 and the unknown number

x+3 = the unknown number increased by 3

Set those two expressions equal to one another. Isolate x.

19x = x+3

19x-x = 3

18x = 3

x = 3/18

x = 1/6

The unknown number is the fraction 1/6.