Answer:
The Attachment has the answer
Step-by-step explanation:
Answer:
= 9
Step-by-step explanation:
Given that,
Asn expression : 
We need to evaluate the above expression.
We know that, 
So,

or

So, the value of
is 9. Hence, the correct option is (b).
Answer:
which 2 equations
Step-by-step explanation:
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need full information