Question

if p=2a - 5b - 7c, Q= 9b - 6a - 10c ,and R = 17c - 4 b + 4a ,then p+q+r​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

P=2a-5b-7c

Q=9b-6a-10c

R=17c-4b+4a

P+Q+R=(2a-5b-7c)+(9b-6a-10c)+(17c-4b+4a)

=2a-5b-7c+9b-6a-10c+17c+4b+4a

=2a-6a+4a-5b+9b-4b-7c-10c+17c

=6a-6a-9b+9b-17c+17c

=0