Is it possible for a pair of nonadjacent angles to share a vertex ?

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?

[tex]5 \times1 \frac{12}{13} [/tex] me