29-08-2014
Mathematics

contestada

-(x + 2) - 2x = -2( x + 1)

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konrad509 konrad509

29-08-2014

[tex]-(x + 2) - 2x = -2( x + 1) \\ -x-2-2x=-2x-2\\ -x=0\\ x=0[/tex]

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Аноним Аноним

29-08-2014

[tex]-(x+2)-2x=-2(x+1)\\\\-x-2-2x=-2x-2\\\\-3x-2=-2x-2\ \ \ \ \ \ |add\ 2\ to\ both\ sides\\\\-3x=-2x\ \ \ \ \ \ \ \ |add\ 2x\ to\ both\ sides\\\\-x=0\\\\\boxed{x=0}[/tex]

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