Respuesta :

Answer:

x=21

Step-by-step explanation:

3 + x = 24

-3      -3

x=21

Answer:

x + 27

Step-by-step explanation:

Let "a number" = x.

"The sum of three and a number" = 3 + x

"is added to twenty-four" = + 24

3 + x + 24

Simplify. Combine like terms:

x + 3 + 24

x + 27

x + 27 is your answer.

~