document.write( "Question 58163: The sum of two numbers is two hundred fifteen.The difference of the two numbers is seventy-five.What are the numbers? \n" ); document.write( "
Algebra.Com's Answer #39761 by checkley71(8403)\"\" \"About 
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X+Y=215
\n" ); document.write( "X-Y=75
\n" ); document.write( "X=75+Y
\n" ); document.write( "THUS
\n" ); document.write( "75+Y+Y=215
\n" ); document.write( "2Y=215-75
\n" ); document.write( "2Y=140
\n" ); document.write( "Y=140/2
\n" ); document.write( "Y=70
\n" ); document.write( "X+70=215
\n" ); document.write( "X=215-70
\n" ); document.write( "X=145
\n" ); document.write( "PROOF
\n" ); document.write( "145-70=75
\n" ); document.write( "75=75
\n" ); document.write( "
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