Question

If A + B + C = D and B + 2C = A + D, then

Answer 1

Answer:

C=2A

Step-by-step explanation:

B+2C=A+D

=A+A+B+C

=2A+B+C

Ie B+2C=2A+B+C

ie 2C=2A+C

C+C=A+A+C

ie C=2A

Answer 2

Step-by-step explanation:

from this we can derive whatever we want