Question

For what value of 'p' the following pair of equations has a unique solution. 2x + py = - 5 and 3x + 3y = - 6

Answer 1

Answer:

The pair of linear equations has unique solution if 'p' is not equal to 2

Step-by-step explanation:

If the pair of linear equations have unique solution, a1/a2 is not equat to b1/b2

a1=2; b1=p; a2=3; b2=3

a1/a2 is not equal to b1/b2

2/3 is not equal to p/3

2 is not equal to p

Therefore p is not equal to 2

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