document.write( "Question 106123: what two numbers equal 60 and have a difference of 7 \n" ); document.write( "

Algebra.Com's Answer #77204 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "let one number be $\"x\"$ , and another one be $\"y\"$ :\r
\n" ); document.write( "\n" ); document.write( "given:\r
\n" ); document.write( "\n" ); document.write( " $\"x%2By+=+60\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x-y+=+7\"$ \r
\n" ); document.write( "\n" ); document.write( "from first equality:\r
\n" ); document.write( "\n" ); document.write( " $\"x%2By+=+60\"$
\n" ); document.write( " $\"x=+60+-+y\"$ let substitute it in second equality\r
\n" ); document.write( "\n" ); document.write( " $\"x-y=7\"$
\n" ); document.write( " $\"60-y-y=7\"$
\n" ); document.write( " $\"60+-2y=7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"60-7+=+2y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"53+=+2y\"$
\n" ); document.write( " $\"y+=+53%2F2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y+=+26.5\"$ \r
\n" ); document.write( "\n" ); document.write( "then
\n" ); document.write( " $\"x=7%2By\"$
\n" ); document.write( " $\"x=+7%2B26.5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+33.5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"33.5%2B26.5=+60\"$
\n" ); document.write( " $\"33.5+-+26.5=7\"$
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