Subtract a-2b-c from the sum of 3a-b+c and a+b-3c
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15
Answer:
Sum of a+2b-3c and 2c-3b-4a = a+2b-3c + 2c-3b-4a
= -3a-b-c ____eq. 1
Sum of 5b-4c+a and 2c-3b-4a
= 5b-4c+a+2c-3b-4a
= -3a+2b-2c ______eq 2
According to question, eq2-eq1
=> (-3a+2b-2c) -(-3a-b-c)
=> -3a+2b-2c+3a+b+c
=> 3b-C
Answered by
29
Answer:
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