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4/3 (5x-2) = 7[x-(5x-2)]
20/3 x -8/3 = 7[x-5x+2]
20/3 x -8/3 = 7x-35x+14
20/3 x -7x+35x = 14+8/3
14/3 x = 50/3
x = (14/3):(50/3)
x = 25/7
mmmmm...creo que lo hice bien :D