Respuesta:
-3x-7y+7
Explicación paso a paso:
x-9y+8 - 2x-y+4 - 2x+3y-5
x-2x-2x-9y-y+3y+8+4-5
x-2x-2x-9y-y+3y+7
-3x-9y-y+3y+7
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Verified answer
Respuesta:
-3x-7y+7
Explicación paso a paso:
x-9y+8 - 2x-y+4 - 2x+3y-5
x-2x-2x-9y-y+3y+8+4-5
x-2x-2x-9y-y+3y+7
-3x-9y-y+3y+7
-3x-7y+7