Question 414087
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Hi
solving by Elimination method
6x-y = 20
3x-y = 7

 6x-y = 20
-3x+y = -7   | Multiplying the second Eq by -1 to eliminate y
   3x = 13
    x = 13/3 and y = 6    ( y = 3x -7 from the 2nd origial Eq )
  Solution is (13/3, 6)
CHECKING our Answer***
 6x-y = 20
6*(13/3)- 6 = 26 - 6 = 20 

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circle(13/3, 6,0.3),
graph( 300, 300,  -10,10,-10,10, 0,6x-20, 3x-7))}}}