Subtract the second expression from the first:
(i) 2𝑎+𝑏, 𝑎+𝑏

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Solution

Solution:
2a+b, a+b
We need to subtract second expression from first
= (2𝑎+𝑏)−(𝑎+𝑏)
= 2𝑎+𝑏−𝑎−𝑏
= 2𝑎−𝑎+𝑏−𝑏
= 𝑎+0
= 𝑎
Hence, the answer is 𝑎.

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