Answer:
Step-by-step explanation:
We need to find the value of the below expression i.e.
when a = 2 and b = 1.
So,
Put a = 2 and b = 1 in the above expression. So,

Hence, the value of the expression is equal to 3.
Alright, so in order to solve this, we need to isolate the variable. So, we need to simplify the equation. So, we have the equation:
82•P = 84
So, we need to divide both sides by 82 because it is the opposite of multiplication. So, we have :
82•P/82 = 84/82
So, 82•P/82 = 1p = P.
84/82 = P
If You Need Decimal Form,
84/82 = About 1.02
Just find replace the letters with the numbers provided and solve