2x+9xy-67y+17y-(xy)=y ?
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Answer:
=> 2x+9x-64y+17y-(xy)=y
=> 2x+9x-x-64y+17-y=y
=> 19x-57y=y
=> 19×=y/-57y
=> 19x=-57
=> x= +57/19
=> x=3
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