johnnyhausauerovxo9m johnnyhausauerovxo9m

13-09-2017
Mathematics

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justasmalltowngirl justasmalltowngirl

13-09-2017

3. -2n-1(9-10n)
Distribute
-2n-9+10n
Combine like terms
8n - 9

4. 10+5(9n+9)
Distribute the parentheses
10+45n+45
Combine like terms
45n+55

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