Question

answer this...
form equations from the determinants
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Answer 1

Answer:

Answer:x = 3 ,y = 2

Step-by-step explanation:

1st determinant: , 2nd determinant:

3x - y = 7 , 4y + x = 11

3x -7 = y , 4(3x-7) + x = 11

, 12x - 28 + x = 11

13x = 11 + 28

x = 39/ 13

x = 3

y = 3(3) - 7

= 9 -7

y = 2

Answer 2

x=3 ,y=2

3x-y=7;...(1)

4y+x=11;(3)

multiply euation (1) by 4 and add both of them

so we get

x=3and y=2