Question

f
(x+y - 1) dx + (х + 2y -3)dy =0​

Answer 1

Answer:

1. We have dx and dy such that we take the derivative with respect to x and y ie dx/dy and dy/dx
2. We treat y as a constant such that dx results in 1
3. The dx results in 1
4. The dy results in 2
5. So 1+2 =3