9x9+81
81/7= 81 over 7, or 11.6
If 455 changes to a higher number the mean which is the average should increase to a higher number
To do this, you must use the order of operations.
3·2=6
6+4=10
Now to solve (-)x.
Since -x comes in front of 4, you must make your equation:
-x+10
Nothing is written for x, so now, you have the answer.
-x+10
