Respuesta :

musiclover10045

Let the short piece = x

Th longer piece would be 2x ( twice as long)

Now you have x + 2x = 84 inches

Simplify:

3x = 84

Divide both sides by 3:

X = 28

The shorter piece is 28 inches.

roperog10

Answer: 84/2=42, 42-12=28   42+12= 56      56+28=84

Step-by-step explanation:

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