Question

find the value of X &Y By substitution method 3x-y=3 -(i)eq. 4x-y=8 -(ii)​

Answer 1

Answer:

Aperture refers to the opening of a lens's diaphragm through which light passes. ... Lower f/stops give more exposure because they represent the larger apertures, while the higher f/stops give less exposure because they represent smaller apertures.

Answer 2

Answer:

your answer is in the attachment