Question

If (1, −2) is a solution of the equation 2x – y = p, then find the value of p.

Answer 1

Step-by-step explanation:

solutions are (-2,1)

let x=1;y=-2

2(1)-(-2)=p

2+2=p

p=4

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Answer 2

Answer:

Step-by-step explanation:

2x - y = p

GIVEN : x = 1 and y = -2

substitute x and y value in equation

2 (1) - -2 = p

2 + 2 = p

4 = p

p = 4