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16-03-2017
Mathematics

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7 - 3x = 3 ( 3- x ) - 2

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Аноним Аноним

16-03-2017

first
7−3x=3(3−x)−2
7+−3x=(3)(3)+(3)(−x)+−2(Distribute)
7+−3x=9+−3x+−2
−3x+7=(−3x)+(9+−2)(Combine Like Terms)
−3x+7=−3x+7
−3x+7=−3x+7
secound
−3x+7+3x=−3x+7+3x
7=7
third
7−7=7−7
0=0

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