dean-thomas_609a1639d1137
dean-thomas_609a1639d1137
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total = x consumido pelas crianças= x/2 consumido pelos adultos= 1/3 * x/2 sobrou = 120 garrafas x = x/2 + x/6 + 120 x - x/2 - x/6 = 120 (6x - 3x - x)/6 = 120 2x/6 = 120 x = 360 refrigerantes