9 is the standard deviation in this problem. The mean iq score is 93.
This meant that his IQ score is 93+9*3=93+27=120 :) also this john person is really smart im jealous :(
Hello!
First, let's write the problem.

Subtract 3x from both sides.


The opposite of division is multiplication, so we are going to multiply in order to undo the fraction.

Our final answer would be,

Thanks!
-TetraFish
Yes as the even times the occurrence of negative signs makes the answer positive.
What you need to do is divide the fraction then multiply by the reciprocal of that fraction
So it’ll be 9-3x3+1
Then you multiply the numbers
9-9+1
Eliminate both 9’s, therefore the answer will be 1