kieran-reid_60961c11ce27c
kieran-reid_60961c11ce27c
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1/2x + 1/4x + 1/7x + 3 = x Despejando: X - 1/2x - 1/4x - 1/7x = 3 56/56x - 28/56x - 8/56x = 3 6/56x = 3 x = 3/(3/56) x = 28 Comprobación: 1/2 de 28 = 14 1/4 de 28 = 7 1/7 de 28 = 4 y 3 no estudian. si sumas: 1…