Question

what must be subtracted to 3x +y to get 2a-b​

Answer 1

Answer:

2a - b + 3x - y

Step-by-step explanation:

let's take that unknown value as z,

z - 3x + y = 2a - b

z = 2a - b + 3x - y

since a,b and x,y values are unknown, the answer should be like that!