document.write( "Question 1156658: Given two numbers that have a
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Algebra.Com's Answer #779414 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
>>Give two numbers...<<

Let them be x and y

>>that have a difference of 7...<<

x-y=7

>>...and add to make -1<<

x+y=-1\r\n" );
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document.write( "Add the two equations term by term\r\n" );
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document.write( " x-y= 7\r\n" );
document.write( " x+y=-1\r\n" );
document.write( "-------\r\n" );
document.write( "2x  = 6\r\n" );
document.write( " x  = 3\r\n" );
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document.write( "Substitute 3 for x in x-y=7\r\n" );
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document.write( "x-y=7\r\n" );
document.write( "3-y=7\r\n" );
document.write( " -y=4\r\n" );
document.write( "  y=-4\r\n" );
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document.write( "They are 3 and -4.\r\n" );
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document.write( "They have a difference of 7 because 3-(-4) = 3+4 = 7\r\n" );
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document.write( "They add to make -1 because 3+(-4) = -1\r\n" );
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document.write( "Edwin

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