The pair of linear equations $8 x - 5 y = 7$ and $5 x - 8 y = - 7$ have:

Unique solution

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Two solutions

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No solution

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Many solutions

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Solution

The correct option is A Unique solution
The pair of liner equations $8 x - 5 y = 7, 5 x - 8 y = - 7$ x−5y
Here $a_{1} = 8, b_{1} = - 5; a_{2} = 5, b_{2} = - 8$
Thus $\frac{a_{1}}{a_{2}} \neq \frac{b_{1}}{b_{2}}$
Hence ,these are non parallel and thus they will intersect and will give one solution.

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