If 1+x,2x+1,17-x are in Arithmetic Progression find x
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Answer:
x=4
Step-by-step explanation:
if a, b, c are in AP
then 2b = a+b
2(2x+1) = 1+x + 17 - x
4x+ 2 =18
4x=16
x=16/4
x=4
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