1) 4x + 1y = -5
4x + -1y = -11
(x,y) = ( .. , .. )

2) -1x + 1y = -2
-1x + 4y = -5
(x,y) = ( .. , .. )

3) -4x + 6y = -6
-3x + 5y = -5
(x,y) = ( .. , .. )

4) 2x + 6y = -18
-3x + 6y = -33
(x,y) = ( .. , .. )

5) -5x + 6y = -3
6x + -6y = 0
(x,y) = ( .. , .. )

6) 3x + 6y = 9
-1x + -5y = -3
(x,y) = ( .. , .. )

7) -5x + -2y = -20
-5x + 3y = 5
(x,y) = ( .. , .. )

8) 5x + 3y = 17
-2x + 6y = -14
(x,y) = ( .. , .. )

9) 5x + 3y = 0
-2x + 6y = 0
(x,y) = ( .. , .. )

10) -2x + -3y = -5
6x + -5y = 1
(x,y) = ( .. , .. )

11) 4x + -3y = -29
-1x + 6y = 23
(x,y) = ( .. , .. )

12) 4x + 6y = -14
1x + 1y = -2
(x,y) = ( .. , .. )

13) -1x + 2y = -10
4x + 6y = -2
(x,y) = ( .. , .. )

14) 3x + 6y = -27
1x + 4y = -13
(x,y) = ( .. , .. )

15) -6x + 3y = -12
-1x + 1y = 0
(x,y) = ( .. , .. )

16) -1x + -3y = 14
-5x + -5y = 30
(x,y) = ( .. , .. )

17) -1x + 2y = 4
-5x + 2y = 4
(x,y) = ( .. , .. )

18) 1x + 6y = 5
5x + 4y = 25
(x,y) = ( .. , .. )

19) 4x + -3y = 21
-6x + 6y = -36
(x,y) = ( .. , .. )

20) -3x + 6y = 27
-6x + 4y = 30
(x,y) = ( .. , .. )