Addition of 2x-5y+7,3x+5y-4 and -9x+4y is
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Answer:
Adding them
= 2x-5y+7+3x+5y-4-9x+4y
= -4x+4y+3
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2x - 5y + 7 + 3x + 5y - 4 + ( - 9x + 4y )
- 5y + 5y gets cancelled .
5x + 3 ( - 9x + 4y )
5x + 3 - 9x + 4y
- 4x + 4y + 3
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