You a line the decimal points right above each other and add the .45 to .8
First you must add the same numbers together, for instance, you wouldn't add 4y with 4 you have to add it with another number that is just like it, for instance 4y and 9y they are the same, so you can add them. So let's get to the problem now:
5y(2y-3)=(2y-3)
5y*2y=10y
(10y-3)=(2y-3)
You can do nothing to the other side because there are no numbers, that are the same.
Eight plus sixty-nine plus nine equals eighty-six. Is this what you were looking for.
Answer:
I believe its C I could be wrong
Step-by-step explanation: