Question

rewrite using a letter the sum of certain number and 9
​

Answer 1

Answer:

x + 9

Step-by-step explanation:

Let the unknown number be X.

Then,

X + 9 is the sum of an unknown number (expressed as a letter).

if my answer satisfy you,

please mark it as brainliest.

Answer 2

Answer:

Let the other number be x

So you have given sum of other number and 9

So x+9 will be your answer