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.
Step by step pls

Answer 1

Answer:

and D = 14b – 2a +4,

Find the value of A+B+C – D.

Step by step pls

Answer 2

Answer:

8a + 9b  -3

is yor answer

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Step-by-step explanation:

first a+b+c

 5a - 7b + 7

-4a +4b  -7

+9a - 2b - 7

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10a -5b - 7

subtracting

    10 a - 5b - 7

-     -2a  +14b +4 ( changing sign )

     +      -       -

------------------------

       8a + 9b  -3