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5. 4 + 8a - 13 + 7a 6. 8n - 32 + 5m + 33- 3 7. 7 + 13a - 3 - 20 + 2a 8. -5 - 2c + 7 - 60

Sagot :

5. 4 + 8a - 13 + 7a

Collect like terms:

4 - 13 + 8a + 7a

= -9 + 15a

6. 8n - 32 + 5m + 33- 3

Collect like terms:

8n + 5m - 32 + 33 - 3

= 8n + 5m - 2

7. 7 + 13a - 3 - 20 + 2a

Collect like terms:

7 - 3 - 20 + 13a + 2a

= -16 + 15a

8. -5 - 2c + 7 - 60​

Collect like terms:

-5 + 7 - 60 - 2c

= -58 - 2c