Answer:
may be 13 I hope this is the right answer
if m=1
if n=1
Step-by-step explanation:
Don't mind the
-9/91
7
f(X)= 7-2x
f(3) means u have to put the value of 3 in the given equation so it will be
= 7-2×3
= 7-6
= 1
and now you have to add 6 to it so it will be 7.