Math, asked by tejasvasah637, 1 month ago

If #2,-2 and then (a) x = , y = Ž (b) x = 5, y =Ż (0) x = Ž, y = { (a) x = 1, y = 2​

Answers

Answered by vedantarora82
0

Answer:

-3

Step-by-step explanation:

△ =  

 

x

2x

3x

 

x+y

5x+2y

7x+3y

 

x+y+z

7x+5y+2z

9x+7y+3z

 

 = −16

 

x

0

0

 

x+y

3x

4x

 

x+y+z

5x+3y

6x+4y

 

 = −16        (R  

2

→R  

2

−2R  

1

) & (R  

3

→R  

3

−3R  

1

)

x[(3x)(6x+4y)−4x(5x+3y)] = −16

x[18x  

2

+12xy−20x  

2

−12xy] = −16

−2x  

3

=−16

x  

3

=8

x=2

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