At should be added to a+3b+c to get 3a+5b+7c?

1 answer:

8 0

Answer:

2a + 2b + 6c.

Step-by-step explanation:

To find this we subtract :-

3a + 5b + 7c - (a + 3b + c)

= 3a + 5b + 7c - a - 3b - c Now combine like terms:

2a + 2b + 6c (answer).

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At should be added to a+3b+c to get 3a+5b+7c?​