Answer:
It’s 7 (2x + 5 - 3y)
Explanation:
When you distribute the first one you get 14xy + 35xy - 21xy which is not equal to
14x + 35 - 21y
The second one is 2x + 5 - 3y which is definitely not equal to 14x + 35 - 21y
The 3rd one is equal to 14x + 35x + 21xy which is not equal to 14x + 35 - 21y
And the last one is equal to 14x + 35 - 21y which is just what we are looking for