Объяснение:
{x=3+2y
{-3x+6y=-9
-3(3+2y)+6y=-9
(x,y)=(3+2y,y)
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Объяснение:
{x=3+2y
{-3x+6y=-9
-3(3+2y)+6y=-9
(x,y)=(3+2y,y)