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how do you answer 3x-4y+5+4y-3x-5

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johanco | Student, Grade 10 | eNotes Newbie

Posted September 21, 2011 at 9:37 AM via web

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how do you answer 3x-4y+5+4y-3x-5

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samhouston | Middle School Teacher | (Level 1) Associate Educator

Posted September 21, 2011 at 9:54 AM (Answer #1)

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The answer is 0 because all of the terms are opposite.

3x - 4y + 5 + 4y - 3x - 5

3x and -3x = 0

-4y and 4y = 0

5 and -5 = 0

Answer:  0

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