Respuesta :

Answer:

12 units

Step-by-step explanation:

3x - 5 + 2x + 1 + 4x = 23

9x - 4 = 23

9x = 27

x = 3

3x - 5 = 3(3) - 5 = 4

2x + 1 = 2(3) + 1 = 7

4x = 4(3) = 12

Answer: 12

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