Question

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

Answer 1

Answer:

Hence, p = 4

Step-by-step explanation:

Given: 2x-y=p

(As a pair of values which satisfy the given equation one for x and one for y (x,y))

Since, LHS=RHS

So, We will put x = 1 and y = -2

       2x - y = p

     =2 × 1 - (-2)

     =2 × 1 + 2

     =2 + 2

     = 4

Answer 2

$\huge\sf\purple{PolynomialS}$

$x = 1$

$y = - 2$

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Solution:-

$2(1) - ( - 2) = p$

$2 + 2 = p$

$4 = p$

$\therefore$ $p = 4$