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2(3x-1) - 3(y) = -5
6x-2 -3y = - 5
6x -3y = -3
2x -y = -1 .....(1)
2(4-y) - 3(x+1) = 17
8-2y-3x-3 = 17
-3x - 2y+5 = 17
-3x-2y= 12.....(2)
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eliminasikan (1) dan (2)
2x - y = - 1 ............kalikan 2
-3x - 2y = 12 ...
..
4x - 2y = - 2
-3x - 2y = 12
....................(-)
7x = - 14
x = - 2
2x -y = - 1
y = 2x + 1
y = 2(-2) + 1
y = - 3
(x,y) = (-2, -3)