SOLUTION: HELP- I need the determinant, Dx, and Dy 3x-y=7 -5x+4y=-2

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Question 840211: HELP- I need the determinant, Dx, and Dy
3x-y=7
-5x+4y=-2
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
Dx=
| 7 -1|
|-2 4|
which is equal to
Dx=7*4-(-2)(-1)=28-2=26

Dy=
| 3 7 |
|-5 -2|
which is equal to
Dy=(3)(-2)-(-5)(7)=-6+35=29