document.write( "Question 95683: explain why there is no value of x for which the expressions x + 3 and x + 4 are equal?\r
\n" ); document.write( "\n" ); document.write( "My 7th grade son has this question on one of his worksheets and sadly I am unable to help him.\r
\n" ); document.write( "\n" ); document.write( "Thanks so much in advance for your help \n" ); document.write( "

Algebra.Com's Answer #69701 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
explain why there is no value of x for which the expressions x + 3 and x + 4
\n" ); document.write( "are equal?
\n" ); document.write( "My 7th grade son has this question on one of his worksheets and sadly I am
\n" ); document.write( "unable to help him.
\n" ); document.write( "Thanks so much in advance for your help\r
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document.write( "If there were such a value for x, then you could \r\n" );
document.write( "subtract x from both sides like this:\r\n" );
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document.write( "                  x + 3 = x + 4\r\n" );
document.write( "                 -x      -x\r\n" );
document.write( "              -------------------\r\n" );
document.write( "                  0 + 3 = 0 + 4\r\n" );
document.write( "                      3 = 4\r\n" );
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document.write( "That is, if there were such a value for x then \r\n" );
document.write( "3 would have to equal to 4. But 3 does not equal\r\n" );
document.write( "4, so therefore assuming there was such a value \r\n" );
document.write( "for x is wrong.  Therefore there can be no such \r\n" );
document.write( "value for x.\r\n" );
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document.write( "Edwin

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