Answer:
15y - 25 = 5 (3y + -5) which makes the equation 15y - 25 = 5 (3y - 5)
Explanation:
In order to factor with a GCF, what I like to do is divide the whole first equation by whatever the distributed number in the second equation is.
This makes 3y + -5, which is just 3y - 5.
This makes your answer known. Once you have your answer, insert it BACK into the equation to make sure it is equal. (In this case, I have checked, and it is indeed the correct answer.)
So your answer has been found at this point.
Hope this helps.