Question

what must be subtracted for 2 a + b to get 2a -b​

Answer 1

let we subtracted --x then

2a+b-x=2a-b

then 2a cut by both sides

-x=-b-b

-x=-2b

x=2b

Answer 2

Step-by-step explanation:

2a-2b+2a+b

2a+2a-b+b

4a-0

answer = 4a

if it helps you please mark as brainliest