Question

For what value of ‘p’ the following pair of equations has a unique solution.
2x+py=-5 , px+8y=-6For what value of ‘p’ the following pair of equations has a unique solution.
2x+py=-5 , px+8y=-6

Answer 1

Answer:

2x+py=-5

px+8y=-6

the equation adding and solving

(2x+px)+(8y+py) =-11

x(2+p) + y(8+p) =-11

(2+p) =-11

p=-11-2

p=-13

(8+p)=-11

p=-11-8

p=-19

that the value of p

that is ☑ answer.

all the best .