Hello there! The number is 2, and the solution to the given equation is d = 24.
Let's start by finding what the number is. To do this, let's analyze the information we are given.
The sum of half a number and 5 is 9. ⇒ We know we are adding.
The sum of half a number and 5 is 9 ⇒ We are adding 0.5n and 5.
The sum of half a number and 5 is 9 ⇒ The solution is equal to 9.
So, let's solve: 0.5n + 5 = 9 by isolating n.
0.5n + 5 = 9
0.5n = 4
n = 2.
So, our number is equal to 2.
Now, let's solve the equation! (We are working to isolate d.)
d/4 - 9 = -3
d/4 = 6
d = 24.
I hope I could help you and have a great rest of your day!