Question

if (3,-2) is a solution of equation 3x-py-7=0 then the value of p?

Answer 1

Answer:

3×3-p×-2-7=0

9+2p-7=0

2+2p=0

2p=-2

p=-2/2

p=-1

Answer 2

Answer:

Solution = 3,-2

x = 3, y = -2

Equation:

3x - py - 7 = 0

Substituting values of x and y in the given equation,

3(3) - p(-2) - 7 = 0

9 + 2p - 7 = 0

2p + 2 = 0

2(p + 1) = 0    

p + 1 = 0/2

p + 1 = 0

p = -1

Hope it helps! :)