Help with this math question?

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2x+y=2

5x+3y=13

=>

|| 2 1 ||*|| x ||=|| 2 ||

|| 5 3 ||.|| y ||..||13||

=>

|| x ||=|| 3 -1||*|| 2 ||

|| y ||=||-5..2||.||13||

=>

|| x ||=||-7 ||

|| y ||..||16||

is the answer

6x+3y = 6

x = -7

y = 16

2X+Y=2      >>   5X+3Y=13

*3

6X+3Y=6   >>>>6X+3Y=6

                          -5X-3Y=-13

                           X=-7

-42+3Y=6

3Y=48,  Y=16

-14+16=2

-42+48=6

{2 x + y = 2, 5 x + 3 y = 13}

x = -7, y = 16

Here's one that 

Ax= B  

A = 

[ 2  1  

  5   3 ]  

x= [  x  

      y ]    

B = 

[ 

2 

13]   

Any chance you omitted something?

Well, first solve for x and y. Then read the rest of the question, and see which answers your x and y values fit.