Question

10.From the sum of 3x-y+11 and -y-11,subtract 3x-y-11.​

Answer 1

Step-by-step explanation:

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Answer 2

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⇒ ( 3x – y + 11 ) + ( – y – 11 ) – ( 3x – y – 11 )

⇒ 3x – y + 11 – y – 11 – 3x + y + 11

⇒ 3x – 3x – y – y + y + 11 – 11 + 11

⇒ – y + 11

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