Question

Solve the following pair of equations:
,

A

and

B

and

C

and

D

and

Medium
Solution
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Correct option is D)

The equation  can be rewritten as:


The other equation given is: 


We pick either of the equations and write one variable in terms of the other. 

Let us consider the equation  and write it as 

 

Substitute the value of in equation . We get



Therefore,

Substituting this value of in the equation , we get



Hence, the solution is .

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