Respuesta :

Answer:

Step-by-step explanation:the sum of twice a no. means 2x + and 5 is at least 12 means that the question is 2x+5 =12

judygachanja

Answer:

3.5

Step-by-step explanation:

let x represent the number.

twice the number = 2x

2x + 5 = 12

2x = 12-5

2x = 7 ; divide both sides by 2.

x = 3.5