Question

If x=y=3 is a solution of the equation 6x+py=12, then find the value of 'p'.

Answer 1

Question:

If x=y=3 is a solution of the equation 6x+py=12, then find the value of 'p'

Solution:

Given :

x= y= 3

6x+py=12 ...............(1)

Put x= y= 3 in eq 1

6x+py=12

6×3+p ×3= 12

18 + 3p =12

3p = 12-18

3p = -6

p = -6/3= -2

p = -2

Hence, the value of p = -2

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Hope this will help you...

Answer 2

Let me help you with this one.
Given equation is 
6 x + p y = 12   .............. (1)
We have to fine the value of p while the values of x and y are given,
i-e.  p = ?
x = y = 3
Now simply put the values of x and y in equation (1), we get:
6 (3) + p (3) = 12
18 + 3 p = 12
Subtracting 18 from both sides, we get:
18 -18 + 3 p = 12 - 18
3 p = -6
simplify further, we get:
p = -6 / 3
p = -2
which is the required value of "p"