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23-06-2016
Mathematics

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4x – (6 – x) = 12 + 4x

Respuesta :

23-06-2016

4x - (6-x) = 12 + 4x

4x - 6 + x = 12 + 4x

5x - 6 = 12 + 4x

5x - 4x = 12 + 6

x = 12 + 6

x = 18

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