Question

6. If x = 2; y = 4 then find the value of p in 7x – 4y = p


. 7. If the straight line 2x – ky = 9 passes through (1,–1), then find the value of k.

8. Test whether the following system of equations has a unique solution, infinite solu- tion, or no solutions. If it has a unique solution then find the values of x and y. 4x + 7y = 18 2x + y = 4
​

Answer 1

Answer:

if X=2and y=4 then p=-2

Step-by-step explanation:

I tink this may helpful for you