Question

Hi this is for texaschic101 mainly but anyone else is fine too.

Answer 1

Because the two angles on the right add to 180 degrees, we can create this system:

$(2x + 25) + y = 180$

We can also prove that $3x = 2x + 25$, which, when solved, shows that $x = 25$. 

When plugged in to the original equation, we find that y = 105 degrees.