Math, asked by bharatsinghkuntal5, 20 hours ago

add a+b-c and -a+b-c

Answers

Answered by TulipHeart

28

Solution :

↣ (a + b - c) + (-a + b - c)

↣ (a - a) + (b + b) + (-c - c)

↣ 2b - 2c

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