If 9x+2;3x−2;x−99x+2; 3x-2; x-9 are in AP, find the value of x.
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a1 = 9x + 2 ,
a2= 3x-2 ,a3=x-99
a2-a1 = a3-a2
=> 2a2 = a3+a1
=> 2(3x-2 )= 9x+2+x-99
=> 6x-4=10x-97
=> 97-4=4x
=> 93 = 4x
=> x = 93/4=23.25
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