Question

if a+b-2c=-7,b+c-2a=5 then what will be c+a-2b =?​

Answer 1

Answer:

add 1st and 2nd equations...

i.e.,

a+b-2c=-7

b+c-2a=5

on adding both eq's

We get..... a+b-2c+b+c-2a=-2

2b-c-a=-2

on taking minus common on both sides...we get,

c+a-2b=2