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Hello, I dont understand why i need to combine the signs of the fraction. Can you please tell me why? I thought i need to multiplicate each term:

7x*2b; 7x*3 and -y*2b; -y*3 to dissolve the cling (sorry englisch isnt my native language I hope you will understand) I dont understand why the fraction becomes negative.

thank you very much!

Lea

Answer provided by our tutors

We want to simplify the fraction, cancel out the common factors.

Since, -2b-3 = (-1)(2b + 3), we pull (-1) in front of the fraction:

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