Math, asked by gkleads8always, 6 months ago

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Answered by Sparklez

0

Answer:

6a-9ab+3b+9-(5a+7ab-2b-12)

6a-9ab+3b+9+(-5a-7ab+2b+12)

6a-5a-9ab-7ab+3b+2b+9+12

a-16ab+5b+21

Answered by mathdude500

1

Answer:

$6a - 9ab + 3b + 9 - (5a + 7ab - 2b - 12) \\ 6a - 9ab + 3b + 9 - 5a - 7ab + 2b + 12 \\ a - 16ab + 5b + 21$

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