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shutvik [7]
3 years ago
14

How do I find x and y?

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0
First, we solve the determinants.


        3      4
D=                    =(3*3)-(4*5)=9-20=-11
         5      3
 

         -2        4
Dx=                  =(-2*3)-(4*4)=-6-16=-22
         4         3

  
         3        -2
Dy=                  =(3*4)-(-2*5)=12+10=22
         5         4

Now, we calculate "x" and "y":

x=Dx/D=-22/-11=2
y=Dy/D=22/-11=-2

Solution: x=2; y=-2.
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