Respuesta :

ghhhhglowe
the awnser would be 29
kelynjoanna

Answer:

Hey buddy, here is your answer. Hope it helps yo.

Step-by-step explanation:

Let the unknown number be x,

x * 3=87. To find out the x we need to divide 87 by 3. That gives you 29. So the unknown number is 29. 29*3=87.