Question

3a+7b+5c, 5a+3b-6c+4a-2b-13c
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Answer 1

Answer:

12a+8b-14c

Step-by-step explanation:

as you can do it like this also

3a+7b+5c

5a+3b-6c

4a-2b-13c

so the answer is=12a+8b-14c

Answer 2

Step-by-step explanation:

12a +8b - 14c

upper one is right