Respuesta :

Answer:

That number is 8

Step-by-step explanation:

That number I will refer to as x

You can just solve for x

2x+(x+4)=28

Ver imagen epicminer256

Answer:

x=8

Step-by-step explanation:

we can answer this question by creating an equation and solving for a variable x.

the sum of twice a number = 2x

four more than the number = 4+x

both of these equal 28, so...

2x+(4+x)=28          set up the equation

3x+4=28                add the terms containing x

3x=24                    subtract 4 from 28 to isolate x

x=8                         divide 3 from 24 to isolate x

hope this helps!