Answer:
First find the person who is excited then finish your math homework or reapply your question because this isn't much to go on still I hope you succeed!
Explanation:
Is this the one?
14x-14y if you divide the 14 it would be 1
12(x-y) = 2x-2y
12x-12y=2x-2y
(12x+2x)-(12y+2y)
14x-14y