The sum of 9 and a certain number is 2 whole number 1 over 4 times the original number. Find the number

2 answers

why all those tedious words? It appears that you mean

x+9 = 2 1/4 x

On the other hand, you opaque language makes it unclear.
From your data:

x + 9 = 2 1/4x = 2.25x

Solve for x.

However, this does not solve to be a whole number. Typos?