(b) –3xy, 4y, 5xy, -y, 4x,
xy_7
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Answer:
the place of commas will be +
-3xy+4y+5xy-y+4x+xy-7
(-3+5+1)xy + (4-1)y +4x + 7
3xy +3y+ 4x+ 7
I hope it will help you ,if iam right
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