Question

For simultaneous equations in variables x and y Dx=-14 , Dy=-28 and D=14 then y=?​

Answer 1

Answer:

hope it helps....

Step-by-step explanation:

Answer 2

The value of y = - 2

Given :

For simultaneous equations in x and y

$\sf{D_x = - 14\: , \: D_y = - 28\: , \: D = 14}$

To find :

The value of y

Solution :

Step 1 of 2 :

Write down the given data

Here it is given that for simultaneous equations in x and y

$\sf{D_x = - 14\: , \: D_y = - 28\: , \: D = 14}$

Step 2 of 2 :

Find the value of y

Using Cramer's rule we get

$\displaystyle \sf{x = \frac{D_x}{D} = \frac{- 14}{14} = - 1 }$

$\displaystyle \sf{y = \frac{D_y}{D} = \frac{ - 28}{14} = - 2 }$

Hence the required value of y = - 2

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