The first one seems to be the best choice for me too
Just combine like terms. So 9x would go with -7x and 4y will go with 2y. so 9x-7x equals 2x, and then 4y+2y equals 6y.So your final expression will be 2x+6y
C.<span>"He looked for a long time at the envelope, the writing on which he did not know, not daring to open it, not wishing to read it, with a wild desire to put it in his pocket and say to himself: 'I'll leave that till to-morrow, when I'm far away!'"</span>
one should help his her mother in her daily house hold work should always behave politely with your mom and there is no person in the world except your mom should show such of love to ur mom