document.write( "Question 246748: The largest of three numbers is 10 more than the smallest. The middle number is the average of the other two. If the sum of the three numbers is 42, what are the three numbers? \n" ); document.write( "
Algebra.Com's Answer #180105 by richwmiller(17219)\"\" \"About 
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L=largest
\n" ); document.write( "m=middle
\n" ); document.write( "s=smallest
\n" ); document.write( "L=10+s
\n" ); document.write( "m=(L+s)/2
\n" ); document.write( "L+m+s=42
\n" ); document.write( "first substitute (L+s)/2 for m
\n" ); document.write( "L+((L+s)/2)+ s=42
\n" ); document.write( "now substitute 10+s for L
\n" ); document.write( "(10+s)+((10+s)+s)/2+s=42\r
\n" ); document.write( "\n" ); document.write( "simplify
\n" ); document.write( "10+2s+(10+2s)/2=42
\n" ); document.write( "2s+(10+2s)/2=32
\n" ); document.write( "multiply by 2
\n" ); document.write( "4s+10+2s=64
\n" ); document.write( "6s=54
\n" ); document.write( "s=9
\n" ); document.write( "L=10+s
\n" ); document.write( "m=(L+s)/2
\n" ); document.write( "substitute 9 in for s\r
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