Asked by Watermelon

The consecutive terms of an arithmetic progression are 5-x, 8, 2x. Find the common difference of the progression.

Answers

Answered by MathMate
The common difference of an A.P. is constant, therefore, we can take the difference of consecutive terms and equate the values to determine x:

2x-8 = 8 - (5-x) =>
2x - x = 8-5+8 =>
x = 11

or
common difference
=2x-8
= 14
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