From the sum of 8-3x-4y and 6-9xy, subtract the sum of 9y-3x-1 and y+x-4.

I think its answer is 9-12xy-14y-2x

If you want to know it stepwise please reply

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I got! the answer is 19-x-9xy-14y

First find the answer of first sum,you will get 14-3x-9xy-4y after that if you will find the answer of second sum you will get 10y-2x-5 according to question subtract second sum from first sum 14-3x-9xy-4y-(10y-2x-5) the answer will be 19-x-9xy-14y.If you want the sum i can send you the sum but you have to give a message to my email that is bijaykrishna05@yahoo.in

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First Part-

8-3x-4y+6-9xy

=8+6-3x-4y-9xy

=14-3x-4y-9xy

Second Part-

9y-3x+y+x-4

=9y+y-3x+x-4

=10y-2x-4

Third part-

14-3x-4y-9xy-(10y-2x-4)

=14-3x-4y-9xy-10y+2x-4

=14-4-3x+2x-4y-10y-9xy

=10-1x-14y-9xy ------------- This is the Answer

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First Part-

8-3x-4y+6-9xy

=8+6-3x-4y-9xy

=14-3x-4y-9xy

Second Part-

9y-3x+y+x-4

=9y+y-3x+x-4

=10y-2x-4

Third part-

14-3x-4y-9xy-(10y-2x-4)

=14-3x-4y-9xy-10y+2x-4

=14-4-3x+2x-4y-10y-9xy

=10-1x-14y-9xy ------------- This is the Answer

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