Question

What is sum
of additive inverse of 7a+2b+c
and additive inverse of (5a+2b-c)​

Answer 1

Answer:

=12a+4b-4c

Step-by-step explanation:

additive inverse of 7a+2b+c is 7a-2b-c

and

additive inverse of 5a+2b-c is 5a-2b+c

so the sum of

7a-2b-c and 5a-2b+c

=12a+4b-4c

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