Subtract the sum of a - b + c and a + b - 2c from 3a + 3b + 3c.
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Answered by
7
Answer:
a + 3b + 4c
Step-by-step explanation:
Adding a - b + c and a + b - 2c,
a - b + c
+ a + b - 2c
------------
2a + 0b - c
------------
Subtracting the answer from 3a + 3b + 3c
3a + 3b + 3c
- 2a + 0b - c
---------------
a + 3b + 4c
---------------
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