Question

a-b में क्या जोड़ें कि योगफल 2a+b हो जाए?​

Answer 1

Step-by-step explanation:

let a-b be added to x

we get

(a-b)+x=2a+b

a-b+x=2a +b

a-2a+x=b+b

-a +x = 2b

x =2b +a