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8x-6y=-34
3x+2y=-17 /*3
8x-6y=-34
9x+6y=-51
------------- +
17x=-85 /:17
x= -5
-15+2y=-17
2y=-17+15
2y=-2
y= -1
2.
(2x+8)(3y - 2) + (2 - x) (y - 5) =6xy-4x+24y-16+2y-10-xy+5x=5xy+x+26y-26
3.