4 years ago

What is the answer to 13a - 8a + 9b - 4b

1 answer:

ioda4 years ago

3 0

Answer:

Step-by-step explanation:

$13a-8a+9b-4b\\\mathrm{Add\:similar\:elements:}\:13a-8a=5a\\=5a+9b-4b\\\mathrm{Add\:similar\:elements:}\:9b-4b=5b\\=5a+5b$

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