document.write( "Question 174298: A student says that a + b = a because the variable b cancels. How do you respond?
\n" );
document.write( " c + b c
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #129246 by stanbon(75887) ![]() You can put this solution on YOUR website! A student says that a + b = a because the variable b cancels. How do you respond? \n" ); document.write( " c + b c \n" ); document.write( "---------------------------------------------- \n" ); document.write( "[(a+b])/(c+b) = (a/c) \n" ); document.write( "---- \n" ); document.write( "I say the student is wrong because you cannot cancel terms, only factors \n" ); document.write( "that are common to numerator and denominator. \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |