document.write( "Question 327161: Prove: For all real numbers a,b and c, if a+c=b+c, then a=b \n" ); document.write( "
Algebra.Com's Answer #234359 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
You can't prove it.
\n" ); document.write( "It an identity that forms the foundation of mathematics.
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "It's like saying prove in baseball that 3 strikes are an out.
\n" ); document.write( "You can't do it, it's given as a rule.
\n" ); document.write( "
\n" ); document.write( "
\n" );