Question

(ii) a - 2b - 3c from - 2a +5b - 4c​

Answer 1

Answer:

the ANSWER is -a+3b-7c

Step-by-step explanation:

-2a+5b-4c

a-2b-3c ( let's add both equations and check )

it gives as

-a+3b-7c

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Answer 2

Answer:

a - 2b - 3c from - 2a +5b - 4c

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

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