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

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!