document.write( "Question 318939: the difference of two numbers is 6. Their sum is 30. Find the two numbers.
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Algebra.Com's Answer #228321 by dabanfield(803)\"\" \"About 
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the difference of two numbers is 6. Their sum is 30. Find the two numbers.
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\n" ); document.write( "\n" ); document.write( "Let x and y be the two numbers. Then we have:\r
\n" ); document.write( "\n" ); document.write( "1.) x - y = 6 and
\n" ); document.write( "2.) x + y = 30\r
\n" ); document.write( "\n" ); document.write( "From 1.) we have x = y + 6. Substituting y + 6 for x in 2.) we have:\r
\n" ); document.write( "\n" ); document.write( "(y+6) + y = 30
\n" ); document.write( "2y = 24
\n" ); document.write( "y = 12\r
\n" ); document.write( "\n" ); document.write( "Since x = y + 6 we have x = 12 + 6 = 18
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