subtract the sum of 3-4xy + X Y and x-6xy + 7y from 57-4xy + 6y
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Step-by-step explanation:
first calculate the sum
3-4xy+xy+x-6xy+7y= x+7y-10xy+xy+3
= x+7y-9xy+3
now subtract the above from 57-4xy+6y
57-4xy+6y-(x+7y-9xy+3)
=57-4xy+6y-x-7y+9xy-3
= 5xy-x-y+ 54
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