Question

With the help of determinants , solve the following equation :
3x-y = 23 ;
3x+y = 19​

Answer 1

Step-by-step explanation:

3x-y = 23

-3x+y = 19

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0+2y = 4

y = 2

put y = 2 in the equation

3x - y = 23

3x -2. = 23

3x= 23+2

Answer 2

Step-by-step explanation:

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