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:

Put x=1 & y= -2 in equation 2x-y=p

2×1-(-2)=p

2+2=p

4=p

So the value of p is 4.

Mark me as brainlist

Answer 2

Step-by-step explanation:

to find value of p, substitute x = 1 and y = -2 in the given equation and solve for p

2x - y = p

2(1) - (-2) = p

2 + 2 = p

4 = p

therefore p = 4