Verified answer

Step-by-step explanation:

Sum of 3x-y-11 & 3x -y-11 is

⇒3x−y+11−y−11=3x−2y.

then substract 3x-y-11.

p=3x-2y-(3x-y-11)=3x-2y-3x+y+11

p=11-y.

Answer:

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