Question

For what value of 'p' the equation 3x-py=2,4x+3y=7 has unique solution
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Answer 1

Step-by-step explanation:

3x-py = 2 ----1

4x+3y = 7 ----2

1×4=> 12x-4py =8 -—-3

2×3=> 12x+9y =21 —-4

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3-4=> -4py-9y= -13

=> 4py+9y= 13

=> 4py =13 -9y

=> p =(13 -9y)/ 4y

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