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= 2.\r\n" );
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document.write( "Starting from the second store and up, the expression in the left side is the same\r\n" );
document.write( "as starting from the first store up.\r\n" );
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document.write( "Therefore, we can replace the entire index, starting from the second store up, by 2, \r\n" );
document.write( "based on the given equation.\r\n" );
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document.write( "Doing this way, we reduce our multi-store equation to this simple equivalent form \r\n" );
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= 2,\r\n" );
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document.write( "which implies x = 2.\r\n" );
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document.write( "ANSWER. x = 2.\r\n" );
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document.write( "Solved.\r
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