You find the communication system to get in touch with your team leader on the

surface, but all except one of the wires for the communication system have been

disconnected. You know that you can reconnect the wires by matching equivalent

expressions (hint: evaluate each expression to check which ones match). After you

match all of the equivalent expressions, you can use them to find the code word!

A3 is already connected.

A-8-(-3)-7

B-8-3-(-7)

C 8-(+3)-7

D-8-(-3)-(-7)

E 8-(-7)-3

S

8+7+(-3)

-8+3+7 2

-8+3+(-7) 3

8+(-3)+(-7) 4

-8+(-3)+7 5