SOLUTION: How do i find the value of x in Arithmetic sequences? 5-x x+4 and 2x-7 Thanks!

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Question 1051481: How do i find the value of x in Arithmetic sequences?
5-x x+4 and 2x-7
Thanks!
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
Consider the characteristic equation for an arithmetic progression

second term MINUS first term = third term MINUS second term.

You will get a single equation for "x".

Then solve it.