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3a - 7b - 5a + b


3a - 7b - 5a + b

Step 1

To seperate the terms of a and b, we get

3a - 5a - 7b + b

Step 2

Now taking a as a common in ferst two terms and b as a common in last two terms, we get

3a - 5a - 7b + b = a(3 - 5) +b (1 - 7)

Step 3

Simplify the above term, we get

3a - 5a  - 7b + b = a(-2) + b(-6)


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