Respuesta :

Answer:

117 and 39

Step-by-step explanation:

let x be the second number then 3x is the first number , then

3x - x = 78

2x = 78 ( divide both sides by 2 )

x = 39 and 3x = 3 × 39 = 117

The first number is 117 and the second is 39

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