document.write( "Question 262810: If the average of three numbers is V. If one of the numbers is Z and another is Y, what is the remaining number? \n" ); document.write( "
Algebra.Com's Answer #193585 by drk(1908)\"\" \"About 
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Let X, Y, and Z be the 3 numbers. Ten we get
\n" ); document.write( "\"V+=+%28x%2By%2Bz%29%2F3%29\"
\n" ); document.write( "The remaining number is x.
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\n" ); document.write( "step 1 - multiply by 3 to get
\n" ); document.write( "\"3V+=+x+%2B+y+%2B+z\"
\n" ); document.write( "step 2 - subtract y and z to get x as
\n" ); document.write( "\"3V-Y+-+Z+=+X\"
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