Question

If A= 5a -7b + 7 , B = -4a -7 +4b , C = 9a -7 -2b and D = 14b – 2a +4,
Find the value of A+B+C – D.

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step:

A= 5a -7b + 7

B = -4a -7 +4b

C = 9a -7 -2b

D = 14b – 2a +4

A+B+C-D=?

=5a-7b+7+(-4a-7+4b)+9a-7-2b-(14b-2a+4)

=5a-7b+7-4a-7+4b+9a-7-2b-14b+2a-4

=12a-19b-11

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