Question

From the sum of 3a-b+9 and b-9, subtract 3a-b-9

Answer 1

Answer:

3a-b+9

+b-9

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3a

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3a-b-9

-3a

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-b-9

Step-by-step explanation:

hope you are satisfied this answer

Answer 2

Answer:

HI FRIEND

Step-by-step explanation:

THE FINAL ANSWER WILL BE( 3a-b+9+b-9)-(3a-b-9)

                                                   (3a)-3a+b+9

                                                    =b+9

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