thomas-young_609900340783a
thomas-young_609900340783a
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Razão entre balas de café e frutas: 3 pra 5 3/5 = c/f -> 5c = 3f 2/3 = 3 + c/f ->2f = 9 + 3c à um sistema onde . 5c - 3f = 0 (i) . 2f -3c - 9 = 0 (x 5/3) = 10f/3 - 5c - 15 = 0 (ii) Somando (i) e (ii): 5c - 3f + 10f/3 - 5c - 15 = 0 -&…