Respuesta :

Answer:

5

Step-by-step explanation:

The computation is shown below:

Given that

3(-2m + 5) - 6(-4m - 2)

-6m + 15 + 24m + 12

18m + 27

Divided by 9

2m + 3

Here a = 2

And, b = 3

So, a + b = 2 + 3 = 5

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