Respuesta:
Coche rojo: 2x + 1
Coche negro: 3x - 5
Total: 6 coches
2x + 1 = 3x - 5;
1 + 5 = 3x - 2x;
6 = x;
x = 6/1 = 6
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Respuesta:
Coche rojo: 2x + 1
Coche negro: 3x - 5
Total: 6 coches
2x + 1 = 3x - 5;
1 + 5 = 3x - 2x;
6 = x;
x = 6/1 = 6