Question

4a + 2b-7c from a+2b +3c

Answer 1

Answer:

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Step-by-step explanation:

3a+4b+7c,−5a+3b−6c and 4a−2b−4c

The sum of 3a+4b+7c,−5a+3b−6c and 4a−2b−4c is calculated as shown below

(3a+4b+7c)+(−5a+3b−6c)+(4a−2b−4c)

=3a+4a−5a+4b+3b−2b+7c−6c−4c

We get,

=2a+5b−3c

Hence, the sum of 3a+4b+7c,−5a+3b−6c and 4a−2b−4c is 3c