Question

12b−17b−b how solve this?

Answer 1

For this case we have the following expression:

$12b-17b-b=$

We have that by definition of Law of the Signs of the Sum that: Equal signs are added and the same sign is placed, while different signs are subtracted and the sign of the greater is placed. So:

$-5b-b =\\-6b$

Answer:

-6b

Answer 2

Answer:

-6b

Step-by-step explanation:

In this question, its simple math,how?

All the terms are alike, so just apply subtraction method;

$=12b-17b-b\\\\\\\\=12b-18b\\\\=-6b$