SOLUTION: The firsr three terms of arithmetic sequence are 2x-4,x-3,8-x dertemine the value of x nd calculate the value of b and d.

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Question 973860: The firsr three terms of arithmetic sequence are 2x-4,x-3,8-x dertemine the value of x nd calculate the value of b and d.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
This requires a constant difference between successive terms.

x-3-%282x-4%29=8-x-%28x-3%29

-x%2B1=11-2x

x=-1%2B11

highlight_green%28x=10%29

The first three terms are 16, 7, -2.

Common difference is 9, but this is SUBTRACTED to reach each n+1 term from any n term.