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03-12-2020
Mathematics

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7 + 13а – 3- 20 + 2а

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Аноним Аноним

03-12-2020

7 + 13а – 3- 20 + 2а

combine like terms

7+13a+2a-3-20

7+15a-3-20

then do -3-20

-3-20=-23

7+15a-23

7-23=-16

15a-16

answer:

15a-16 or -16+15a

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