Question

The sum of the following :
$3a + 4b + 7c - 5a + 3b - 6c + 4a- 2b - 4c$
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Answer 1

Answer:

2a+5b-3c

Step-by-step explanation:

3a+4b+7c−5a+3b−6c+4a−2b−4c

= a(3-5+4)+b(4+3-2)+c(7-6-4)

=a(2)+b5+c(-3)

=2a+5b-3c