Ответ:
Пошаговое объяснение:
-5/18 ·(3 3/5 ·x+1 11/25 ·y) +9/20 ·(2 2/9 ·x-4 4/9 ·y)=-5/18 ·(18/5 ·x +36/25 ·y) +9/20 ·(20/9 ·x -40/9 ·y)=-x -2/5 ·y+x-2y=-0,4y-2y=-2,4y
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Ответ:
Пошаговое объяснение:
-5/18 ·(3 3/5 ·x+1 11/25 ·y) +9/20 ·(2 2/9 ·x-4 4/9 ·y)=-5/18 ·(18/5 ·x +36/25 ·y) +9/20 ·(20/9 ·x -40/9 ·y)=-x -2/5 ·y+x-2y=-0,4y-2y=-2,4y