lillibell07
lillibell07 lillibell07
  • 08-10-2019
  • Mathematics
contestada

Help please.
12x+9x+15x

7n+28-21m

Respuesta :

Аноним Аноним
  • 08-10-2019

Answer: 105 n x − 21 m + 21x + 28

Step-by-step explanation:

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