Question

When a number is doubled and then added to 13 the result is 38. Find the number?

Answer 1

Okay, here we have this:

From the statement we obtain the following equation, where x is the unknown number:

(x*2)+13=38

Now, let's solve for x:

x*2=38-13

x*2=25

x=25/2

x=12.5

Finally we obtain that the number is 12.5.