Question

Sum of:-
3a+4b+7c, -5a+3b-6c and 4a-2b-4c

Answer 1

Answer:

3a+4b+7c-5a+3b-6c+4a-2b-4c

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

=7a-5a+7b-2b+7c-10c

=2a+5b-3c answer

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Answer 2

Answer:

Step-by-step explanation:

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

3 + 4 b + 7 C + 5 a+ 3 b - 6 C +4 - 2B - 4 c

Ans= 2A + 5 b - 4 c