-7 = x/2 + 1
Subtract one from both sides
-8 = x/2
Multiply two on both sides
-16 = x
Answer, x = -16
Checking,
-7 = (-16/2) + 1
-7 = -8 + 1
-7 = -7
Answer:
Expression D
Step-by-step explanation:
all other answers are above 15! hope this helps :D
Answer:

Try to solve the similtanious equation to find the first term and the common difference, then use that information to figure out the 80th term... Update me if you need further help ...
Answer:
I attached the image that has all of the elements. If I missed something, please let me know and I will fix it.