Respuesta :

Factor 5 de 5t - 5
5(t - 1)

¡Espero que esto ayude! :)
5t - 5

5t - 5 = 0

5t - 5 (+5) = 0 (+5)

5t = 5

5t/5 = 5/5

t = 1

hope this helps

are you sure you're not missing any information lol