If the average of 27-x, x-8, and 3x+11 is y, what is the average of 2y and
in terms of x?\r
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document.write( "...the average of 27-x, x-8, and 3x+11 is y...
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document.write( "To average them, we add them and divide by 3, then set equal to y:\r\n" );
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document.write( "Simplify\r\n" );
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document.write( "...what is the average of 2y and
in terms of x?...
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document.write( "First we average
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document.write( "To average them, we add them and divide by 2:\r\n" );
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document.write( "Simplify by Multiplying top and bottom by 3:\r\n" );
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document.write( "Now we substitute 10+x for y\r\n" );
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document.write( "Edwin
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