Let's represent the unknown number as "x."
Add 9 to the unknown number: x + 9
Multiply the result by 3: 3(x + 9)
Subtract 16: 3(x + 9) - 16
Add 7 to the previous result: 3(x + 9) - 16 + 7
According to the problem, this expression should equal 27:
3(x + 9) - 16 + 7 = 27
Now, let's solve for "x":
3(x + 9) - 16 + 7 = 27
3x + 27 - 16 + 7 = 27
3x + 18 = 27
3x = 27 - 18
3x = 9
x = 9 / 3
x = 3
So, the unknown number is 3.
I hope this helped!
~~~Harsha~~~