Answer: The correct option is
(a) 6.
Step-by-step explanation: We are given to find the value of r from the following equation :
[tex]5+r-2=9~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
To find the value of r, we must solve the given equation for r as follows :
[tex]5+r-2=9\\\\\Rightarrow r+3=9\\\\\Rightarrow r=9-3\\\\\Rightarrow r=6.[/tex]
Thus, the required value of r is 6.
Option (a) is CORRECT.
