Question

The sum of two expressions is 13x' + 2xy - y
If one of them is 12x + 3y, find the other​

Answer 1

Step-by-step explanation:

given that the sum of 2 expressions is

13x + 2xy - y

one of them is 12x + 3y

let the other expression be 'a'

so, 12x + 3y + a = 13x + 2xy - y

a = 13x + 2xy - y -12x - 3y

after simplification, we get a = x - 4y + 2xy

so the other expression is

x - 4y + 2xy