document.write( "Question 176001: Find two numbers whose sum is 47 and whose difference is 7.
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document.write( "We will call the two numbers x and y.) \r
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document.write( "x=?
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document.write( "y=? \n" );
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Algebra.Com's Answer #131109 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! x+y=47....eq 1 \n" ); document.write( "x-y=7.....eq 2 \n" ); document.write( ": \n" ); document.write( "rewrite eq 1 to y=47-x and plug that into eq 2 \n" ); document.write( ": \n" ); document.write( "x-(47-x)=7 \n" ); document.write( ": \n" ); document.write( "x-47+x=7 \n" ); document.write( ": \n" ); document.write( "2x=54 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " |