nr390035 nr390035
  • 14-08-2020
  • Mathematics
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what is the answer to 13a - 8a + 9b - 4b

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Аноним Аноним
  • 14-08-2020

Answer:

5a + 5b

Step-by-step explanation:

[tex]13a-8a+9b-4b\\\mathrm{Add\:similar\:elements:}\:13a-8a=5a\\=5a+9b-4b\\\mathrm{Add\:similar\:elements:}\:9b-4b=5b\\=5a+5b[/tex]

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