SOLUTION: what is the missing term of the following solution?..-34,_,77

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Question 667820: what is the missing term of the following solution?..-34,_,77
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
I'm going to assume that your sequence is just adding by some common difference d. If that's the case, then take the midpoint between -34 and 77. Then you get -34 +77 / 2 = 43/2 = 21.5. Without more information, this is all I can gather.