Better picture!! Please help me I’m desperate!

Question

asked Dec 15, 2019 48.9k views

1 Answer

Loquatious · Answer 1 · 2019-12-22T19:32:05+0000

Hi.
Your question appears easy.
First, we multiply by 3, so now we get:

3Y = r+s+t

Now, we subtract r and t from the right side, and we get:

s = 3Y - r - t

There is your answer.