Answer:
Step-by-step explanation:
Basic fact:
<em>angles in a point add up to 360</em>
20+165+33+90(that is the right angle)+x=360
20+165+33+90=308
308+x=360
-308
x=52
40.9 - 5y
25.6 - 5y + 15.3
40.9 - 5y ## ^ combine like-terms
