Respuesta :

1. 3x
2. x
3. 6x
4. 3x
5. 6x

Answer:

  1. 3x
  2. x
  3. 6x
  4. 3x
  5. 6x

Step-by-step explanation:

1)

x + 2x

= 1x + 2x

= (1 + 2)x

= 3x

2)

2x - x

= 2x - 1x

= (2 - 1)x

= 1x

= x

3)

4x + 2x

= (4 + 2)x

= 6x

4)

6x - 3x

= (6 - 3)x

= 3x

5)

5x + x

= 5x + 1x

= (5 + 1)x

= 6x

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