Question

3a - 2b + 5c, 2a + 5b- 7c, -a -b+c?​

Answer 1

Answer:

$(3a + 2a - a) + ( - 2b + 5b - b) + (5c - 7c + c) \\ 4a + 2b - c$

Answer 2

Answer:

4a + 2b + (-c)

Step-by-step explanation:-

3a - 2b + 5c , 2a + 5b - 7c , - a - b - c

(3a + 2a - a) + (-2b + 5b - b) + (5c + c - 7c)

4a + 2b + (-c)

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