document.write( "Question 124887: two numbers differ by seven. If their sum is sixty-five, what are the numbers? \n" ); document.write( "
Algebra.Com's Answer #91532 by iluvbuilding429(41)\"\" \"About 
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two numbers differ by seven. If their sum is sixty-five, what are the numbers?

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\n" ); document.write( "\n" ); document.write( "You know that:
\n" ); document.write( "\"65=x%2By\"

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\n" ); document.write( "\n" ); document.write( "You also know:
\n" ); document.write( "\"y=x-7\"
\n" ); document.write( "Substitute this for y in your equation and you get:
\n" ); document.write( "\"65=x%2Bx-7\"

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\n" ); document.write( "\n" ); document.write( "Add:
\n" ); document.write( "\"65=2x-7\"

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\n" ); document.write( "\n" ); document.write( "Add 7 to both sides:
\n" ); document.write( "\"72=2x\"

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\n" ); document.write( "\n" ); document.write( "Divide both sides by 2:
\n" ); document.write( "\"36=x\"

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\n" ); document.write( "\n" ); document.write( "Now you know that your first number is 36. To find the second number, use y=x-7.
\n" ); document.write( "\"y=36-7\"

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\n" ); document.write( "\n" ); document.write( "Subtract:
\n" ); document.write( "\"y=29\"

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\n" ); document.write( "\n" ); document.write( "So now you know that your first number is 36, and your second number is 29. To check, add the two together, and it should equal 65.
\n" ); document.write( "\"65=36%2B29\"

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\n" ); document.write( "\n" ); document.write( "Add:
\n" ); document.write( "\"65=65\"
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