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Simplyfy (−9a − 20c) − (−15a + 3c) − (−22a − 7c)?

1 Answer

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(-9a - 20c) - (-15a + 3c) - (-22a - 7c)

= -9a - 20c + 15a - 3c + 22a + 7c

= (-9a + 15a + 22a) + (-20c - 3c + 7c)

= 28a - 16c
User GeoffM
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