Question

For simultaneous equations in x and y if Dx=39,Dy=26 and D=13,then what is the value of x?

Answer 1

the value of X could be X=3

Answer 2

The value of x = 3

Given :

For simultaneous equations in x and y

$\sf{D_x = 39 \: , \: D_y = 26 \: , \: D = 13}$

To find :

The value of x

Solution :

Step 1 of 2 :

Write down the given data

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

$\sf{D_x = 39 \: , \: D_y = 26 \: , \: D = 13}$

Step 2 of 2 :

Find the value of x

Using Cramer's rule we get

$\displaystyle \sf{x = \frac{D_x}{D} = \frac{39}{13} = 3 }$

$\displaystyle \sf{y = \frac{D_y}{D} = \frac{ 26}{13} = 2 }$

Hence the required value of x = 3

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. Solve the given system of equations.

2x + 8y = 5 24x - 4y = -15

https://brainly.in/question/33685046

2. 2x+3y=12 and 4x+5y=22

https://brainly.in/question/18427922