Question

kindly solve it
promise to mark you as brainliest ​

Answer 1

Explanation:

1)(a+b-c)×2

=2a+2b-2c

2)(a+b-2c)×2

=2a+3b-4c

3)(a+b-c)/2

4)a+b-2c/2

=a+b-c

Thank yoy

Answer 2

Answer:

hope u could understand