document.write( "Question 126022: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number \n" ); document.write( "

Algebra.Com's Answer #92356 by josmiceli(19441) $\"\"$ $\"About$

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Call the numbers $\"a\"$ and $\"b\"$
\n" ); document.write( " $\"b+=+a+%2B+12\"$
\n" ); document.write( " $\"a+%2B+2b+=+39\"$
\n" ); document.write( "---------------
\n" ); document.write( " $\"a+-+b+=+-12\"$
\n" ); document.write( " $\"a+%2B+2b+=+39\"$
\n" ); document.write( "Multiply the 1st equation by $\"-1\"$ and add them
\n" ); document.write( " $\"-a+%2B+b+=+12\"$
\n" ); document.write( " $\"a+%2B+2b+=+39\"$
\n" ); document.write( "----------------
\n" ); document.write( " $\"3b+=+51\"$
\n" ); document.write( " $\"b+=+17\"$ answer \n" ); document.write( "

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