LEVEL-1
1. Find the value of x for which ( 8x + 4), ( 6x-2) and (2x + 7) are in A.P.
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Answer:
6x-2-8x-4=2x+7-6x+2
-2x-6=-4x+9
-2x+4x=6+9
2x=15
x=15/2
x=7.5
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